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Purines and Pyrimidine Derivatives

Purines and Pyrimidine Derivatives

Purines have a bicyclic structure, consisting of a six-membered ring fused to a five-membered ring, both containing nitrogen atoms in key positions. Purine derivatives, such as adenine and guanine, are essential for the formation of DNA and RNA. These compounds have therapeutic applications in cancer and viral disease treatments by inhibiting cell replication. Pyrimidines, on the other hand, have a monocyclic six-membered structure with two nitrogen atoms. Their derivatives, such as cytosine, thymine, and uracil, are also essential components of DNA and RNA and are used in chemotherapy and antiviral treatments. At CymitQuimica, we offer purine and pyrimidine derivatives for research in molecular biology, genomics, and the development of innovative therapies.

Found 8888 products of "Purines and Pyrimidine Derivatives"

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  • Fampridine (Dalfampridine, 4-Aminopyridine)

    CAS:
    Formula:C5H6N2
    Color and Shape:White To Off-White Solid
    Molecular weight:94.12

    Ref: 4Z-F-482

    5mg
    209.00€
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    906.00€
  • Iopamidol EP Impurity G

    CAS:
    Formula:C17H22I3N3O8
    Color and Shape:White To Off-White Solid
    Molecular weight:777.09

    Ref: 4Z-I-4111

    5mg
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    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
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  • 2,4-Diamine-5,6-Dichloropyrimidine

    CAS:
    Formula:C4H4Cl2N4
    Color and Shape:White To Off-White Solid
    Molecular weight:179.00

    Ref: 4Z-P-212012

    5mg
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    444.00€
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    635.00€
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  • 6-Thioguanine

    CAS:
    Formula:C5H5N5S
    Molecular weight:167.19

    Ref: 4Z-G-2450

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    444.00€
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  • 1,3,5-Trimethyl Adamantane

    CAS:
    Formula:C13H22
    Color and Shape:Colorless Liquid
    Molecular weight:178.32

    Ref: 4Z-M-3814

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    444.00€
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  • Oseltamivir Impurity 63 HCl

    CAS:
    Formula:C18H33NO4·HCl
    Molecular weight:327.47 36.46

    Ref: 4Z-O-1191

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    1,214.00€
    25mg
    2,184.00€
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    3,398.00€
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  • R-Clopidogrel N-Oxide


    Formula:C16H16ClNO3S
    Color and Shape:Pale Yellow Liquid
    Molecular weight:337.82

    Ref: 4Z-C-1337

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    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
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  • Febuxostat USP Related Compound E

    CAS:
    Formula:C15H14N2O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:302.35

    Ref: 4Z-F-3931

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    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
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  • ent-Pemetrexed Impurity 23


    Formula:C23H26N6O6
    Molecular weight:482.50

    Ref: 4Z-P-6860

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    1,214.00€
    25mg
    2,184.00€
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    3,398.00€
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  • Methylguanidine HCl

    CAS:
    Formula:C2H7N3·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:73.10 36.46

    Ref: 4Z-G-178001

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    444.00€
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  • Eletriptan HBr

    CAS:
    Formula:C22H26N2O2S·HBr
    Color and Shape:Pale Yellow Solid
    Molecular weight:382.52 80.91

    Ref: 4Z-E-121

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    349.00€
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    444.00€
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  • Zolmitriptan EP Impurity G (Zolmitriptan USP Related Compound A, N-Desmethyl Zolmitriptan)

    CAS:
    Formula:C15H19N3O2
    Color and Shape:Yellow Solid
    Molecular weight:273.34

    Ref: 4Z-Z-021

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    10mg
    910.00€
    25mg
    1,638.00€
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    2,366.00€
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  • Allopurinol EP Impurity E

    CAS:
    Formula:C7H9N3O3
    Color and Shape:Off-White Solid
    Molecular weight:183.17

    Ref: 4Z-A-698

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  • Rizatriptan Impurity A


    Formula:C16H21N5O
    Molecular weight:299.38

    Ref: 4Z-R-126

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    1,335.00€
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    2,366.00€
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  • Frovatriptan impurity 9 HCl


    Formula:C14H16N2O2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:244.29 36.46

    Ref: 4Z-F-1723

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    910.00€
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    1,638.00€
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    2,366.00€
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  • Zolmitriptan EP Impurity I

    CAS:
    Formula:C17H21N3O4
    Color and Shape:White To Off-White Solid
    Molecular weight:331.37

    Ref: 4Z-Z-0216

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    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
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  • Clopidogrel Impurity 44 (Mixture of Diastereomers)


    Formula:C25H26ClNO6S
    Color and Shape:Pink Solid
    Molecular weight:503.99

    Ref: 4Z-C-1362

    5mg
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    1,456.00€
    25mg
    2,670.00€
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    4,368.00€
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  • Caffeine Impurity 1 Ammonium Salt

    CAS:
    Formula:C8H11N4O3·NH4
    Color and Shape:White To Off-White Solid
    Molecular weight:211.20 18.04

    Ref: 4Z-C-1818

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    508.00€
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    825.00€
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    1,153.00€
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  • Sumatriptan-d6 Hemisuccinate

    CAS:
    Formula:C14H15D6N3O2S·5C4H6O4
    Color and Shape:White To Off-White Solid
    Molecular weight:301.44 0.5*118.09

    Ref: 4Z-S-112

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    1,456.00€
    25mg
    2,670.00€
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  • mono-Benzyl Miglustat Isomer 1


    Formula:C17H27NO4
    Color and Shape:White To Off-White Solid
    Molecular weight:309.41

    Ref: 4Z-M-107016

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    698.00€
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    1,153.00€
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    2,002.00€
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  • Thiamine EP Impurity F Bromide HBr

    CAS:
    Formula:C13H19N4OS·Br·HBr
    Color and Shape:White To Off-White Solid
    Molecular weight:279.39 79.90 80.91

    Ref: 4Z-T-847

    5mg
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    10mg
    508.00€
    25mg
    825.00€
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    1,153.00€
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  • Pyridoxine Impurity 5

    CAS:
    Formula:C12H15NO6
    Color and Shape:White To Off-White Solid
    Molecular weight:269.25

    Ref: 4Z-P-7114

    5mg
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    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
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  • Tetrabenzyl L-ido Miglustat

    CAS:
    Formula:C38H45NO4
    Molecular weight:579.78

    Ref: 4Z-M-107021

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    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
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  • D-Kynurenine

    CAS:
    Formula:C10H12N2O3
    Color and Shape:Off-White Solid
    Molecular weight:208.22

    Ref: 4Z-K-008006

    5mg
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    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
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  • Theophylline 7-Acetic Acid

    CAS:
    Formula:C9H10N4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:238.20

    Ref: 4Z-T-601

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    349.00€
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    444.00€
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    635.00€
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  • Pyridoxine Impurity 12 HCl

    CAS:
    Formula:C8H9NO3·HCl
    Color and Shape:Off-White Solid
    Molecular weight:167.17 36.46

    Ref: 4Z-P-7122

    5mg
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    10mg
    698.00€
    25mg
    1,153.00€
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  • Febuxostat Impurity 58

    CAS:
    Formula:C17H18N2O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:330.40

    Ref: 4Z-F-3970

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    508.00€
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    825.00€
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    1,153.00€
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  • Tri-POC Tenofovir Dimer

    CAS:
    Formula:C34H52N10O17P2
    Molecular weight:934.79

    Ref: 4Z-T-0239

    5mg
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    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
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  • Tetrabenazine Impurity 60 (2R,3R,11bR)

    CAS:
    Formula:C19H29NO3
    Color and Shape:Off-White Solid
    Molecular weight:319.45

    Ref: 4Z-T-7837

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
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  • Tenofovir Alafenamide

    CAS:
    Formula:C21H29N6O5P
    Molecular weight:476.48

    Ref: 4Z-T-0234

    5mg
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    10mg
    444.00€
    25mg
    635.00€
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  • Rizatriptan Trimethylammonium Chloride

    CAS:
    Formula:C16H22N5·Cl
    Color and Shape:White To Off-White Solid
    Molecular weight:284.39 35.45

    Ref: 4Z-R-1214

    5mg
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    10mg
    508.00€
    25mg
    825.00€
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    1,153.00€
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  • Mono-POC Tenofovir Fumarate (Mixture of Diastereomers)

    CAS:
    Formula:C17H26N5O10P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:491.39 116.07

    Ref: 4Z-T-0219

    5mg
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    10mg
    1,942.00€
    25mg
    3,580.00€
    50mg
    5,764.00€
    100mg
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  • Fampridine Impurity 5 (3-Cyanopyridine)

    CAS:
    Formula:C6H4N2
    Color and Shape:White To Off-White Solid
    Molecular weight:104.11

    Ref: 4Z-F-4812

    5mg
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    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
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  • Clopidogrel Impurity 43 Bromide (Clopidogrel Iminium Impurity)

    CAS:
    Formula:C16H15ClNO2S·Br
    Molecular weight:320.81 79.90

    Ref: 4Z-C-1373

    5mg
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    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
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  • Eletriptan Impurity 2

    CAS:
    Formula:C30H34N2O4S2
    Color and Shape:Pale Yellow Solid
    Molecular weight:550.73

    Ref: 4Z-E-127

    5mg
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    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
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  • Theophylline EP Impurity F (Theophylline-Ethylenediamine EP Impurity F, Diprophylline EP Impurity C, Etofylline)

    CAS:
    Formula:C9H12N4O3
    Color and Shape:White To Off-White Solid
    Molecular weight:224.22

    Ref: 4Z-T-603

    5mg
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    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
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  • Ondansetron Impurity 1

    CAS:
    Formula:C12H11NO
    Color and Shape:White To Off-White Solid
    Molecular weight:185.23

    Ref: 4Z-O-0310

    5mg
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    10mg
    444.00€
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    635.00€
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    825.00€
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  • Prucalopride Impurity 26


    Formula:C18H26BrN3O3
    Color and Shape:White To Off-White Solid
    Molecular weight:412.33

    Ref: 4Z-P-127032

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
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  • Temozolomide Impurity 8

    CAS:
    Formula:C11H9N5O5
    Color and Shape:Off-White Solid
    Molecular weight:291.22

    Ref: 4Z-T-3417

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Z-Benfotiamine

    CAS:
    Formula:C19H23N4O6PS
    Molecular weight:466.45

    Ref: 4Z-B-208004

    5mg
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    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
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  • Doxofylline Impurity 11

    CAS:
    Formula:C15H16N8O4
    Color and Shape:White To Off-White Solid
    Molecular weight:372.35

    Ref: 4Z-D-129013

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
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  • Clopidogrel Impurity 58


    Formula:C16H16ClNO5S2
    Molecular weight:401.88

    Ref: 4Z-C-1333

    5mg
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    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
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  • Methotrexate Impurity 1 HCl

    CAS:
    Formula:C22H27N9O4·HCl
    Color and Shape:Yellow Solid
    Molecular weight:481.52 36.46

    Ref: 4Z-M-7028

    5mg
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    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
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  • N-Nitroso Idelalisib


    Formula:C22H17FN8O2
    Molecular weight:444.43

    Ref: 4Z-I-084015

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
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  • Diisopropyl Tenofovir Fumarate

    CAS:
    Formula:C15H26N5O4P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:371.38 116.07

    Ref: 4Z-T-0225

    5mg
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  • Tenofovir Impurity 68

    CAS:
    Formula:C18H26N10O7P2
    Color and Shape:White To Off-White Solid
    Molecular weight:556.42

    Ref: 4Z-T-02113

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
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  • Clopidogrel Impurity 57


    Formula:C16H16ClNO5S2
    Color and Shape:White To Off-White Solid
    Molecular weight:401.88

    Ref: 4Z-C-1329

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
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  • Liothyronine EP Impurity B

    CAS:
    Formula:C9H9I2NO3
    Color and Shape:Off-White Solid
    Molecular weight:432.98

    Ref: 4Z-T-4210

    5mg
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    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
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  • Febuxostat USP Related Compound D

    CAS:
    Formula:C16H16N2O3S
    Color and Shape:Pale Grey Solid
    Molecular weight:316.38

    Ref: 4Z-F-3936

    5mg
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    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
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  • Methotrexate-13C-d3 Disodium Salt

    CAS:
    Formula:C1913CH19D3N8O5·2Na
    Molecular weight:458.44 2*22.99

    Ref: 4Z-M-7038

    5mg
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    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
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  • Metabolism Compound Library


    <p>A unique collection of xnum metabolic pathway-related bioactive small molecule compounds for high-throughput, high-content screening.</p>
    Color and Shape:Liquid
  • Tenofovir Impurity 132

    CAS:
    Formula:C14H22N5O7P
    Color and Shape:White To Off-White Solid
    Molecular weight:403.33

    Ref: 4Z-T-0212

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
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  • Thiamine Impurity 11

    CAS:
    Formula:C6H8N4O
    Color and Shape:White To Off-White Solid
    Molecular weight:152.16

    Ref: 4Z-T-8433

    5mg
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    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Ref: 4Z-M-7046

    5mg
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    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
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  • Pemetrexed EP Impurity B and Pemetrexed EP Impurity C

    CAS:
    Formula:C40H40N10O13
    Molecular weight:868.82

    Ref: 4Z-P-6877

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
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  • Fampridine Impurity 7

    CAS:
    Formula:C11H14N2
    Molecular weight:174.25

    Ref: 4Z-F-4814

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Sumatriptan EP Impurity D (Sumatriptan N-Oxide)

    CAS:
    Formula:C14H21N3O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:311.40

    Ref: 4Z-S-115

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Oseltamivir Impurity 15 DiHCl

    CAS:
    Formula:C14H26N2O3·2HCl
    Molecular weight:270.37 2*36.46

    Ref: 4Z-O-11184

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Temozolomide Impurity 11

    CAS:
    Formula:C8H10N2O
    Color and Shape:White To Off-White Solid
    Molecular weight:150.18

    Ref: 4Z-T-3420

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Thyroxamine HCl

    CAS:
    Formula:C14H11I4NO2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:732.86 36.46

    Ref: 4Z-T-4224

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
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  • Tenofovir Disoproxil Fumarate

    CAS:
    Formula:C19H30N5O10P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:519.45 116.07

    Ref: 4Z-T-022

    5mg
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    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
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  • Topiroxostat

    CAS:
    Formula:C13H8N6
    Color and Shape:White To Off-White Solid
    Molecular weight:248.25

    Ref: 4Z-T-148001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Clopidogrel EP Impurity D Sulfate

    CAS:
    Formula:C24H21Cl2NO4S·H2SO4
    Color and Shape:White To Off-White Solid
    Molecular weight:490.40 98.07

    Ref: 4Z-C-1327

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
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  • Tegaserod Maleate

    CAS:
    Formula:C16H23N5O·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:301.39 116.07

    Ref: 4Z-T-931

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
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  • Thiamine EP Impurity G Chloride HCl

    CAS:
    Formula:C14H19N4O2S·Cl·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:307.39 35.45 36.46

    Ref: 4Z-T-848

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Oseltamivir EP Impurity F (Mixture of Diastereomers)

    CAS:
    Formula:C15H26N2O4
    Color and Shape:White To Off-White Solid
    Molecular weight:298.38

    Ref: 4Z-O-118

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Prucalopride-13C-d3

    CAS:
    Formula:C1713CH23D3ClN3O3
    Color and Shape:White To Off-White Solid
    Molecular weight:371.88

    Ref: 4Z-P-127015

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Frovatriptan Impurity 9


    Formula:C14H16N2O2
    Color and Shape:Off-White To Pale Yellow Solid
    Molecular weight:244.30

    Ref: 4Z-F-1716

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Tegaserod Metabolite (SDZ 244-120)

    CAS:
    Formula:C16H17NO9
    Color and Shape:White To Off-White Solid
    Molecular weight:367.31

    Ref: 4Z-T-937

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • (L)-Kynurenine

    CAS:
    Formula:C10H12N2O3
    Color and Shape:Pale Yellow Solid
    Molecular weight:208.22

    Ref: 4Z-K-008001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Ondansetron EP Impurity A (Ondansetron USP Related Compound A (Free Form))

    CAS:
    Formula:C16H20N2O
    Color and Shape:White To Off-White Solid
    Molecular weight:256.35

    Ref: 4Z-O-0314

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • N2,3-Etheno-2'-deoxy Guanosine

    CAS:
    Formula:C12H13N5O4
    Molecular weight:291.27

    Ref: 4Z-G-2430

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Febuxostat tert-butoxy Acid


    Formula:C16H16N2O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:316.38

    Ref: 4Z-F-3937

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Zolmitriptan Impurity 22

    CAS:
    Formula:C14H14N2O4
    Color and Shape:White To Off-White Solid
    Molecular weight:274.28

    Ref: 4Z-Z-025

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Lifitegrast Impurity 7


    Formula:C19H17NO6S
    Color and Shape:White To Off-White Solid
    Molecular weight:387.41

    Ref: 4Z-L-153009

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Fampridine N-Oxide HCl

    CAS:
    Formula:C5H6N2O·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:110.12 36.46

    Ref: 4Z-F-483

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Pyridoxine Impurity 4


    Formula:C12H15NO6
    Color and Shape:White To Off-White Solid
    Molecular weight:269.25

    Ref: 4Z-P-7113

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Memantine-d3 HCl

    CAS:
    Formula:C12H18D3N·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:182.33 36.46

    Ref: 4Z-M-385

    5mg
    To inquire
    10mg
    1,092.00€
    25mg
    1,942.00€
    50mg
    3,034.00€
    100mg
    To inquire
  • Sumatriptan Impurity 10 Succinate

    CAS:
    Formula:C13H18N2O·C4H6O4
    Color and Shape:Off-White Solid
    Molecular weight:218.30 118.09

    Ref: 4Z-S-1121

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Thiamine Impurity 24


    Formula:C15H22N6O3
    Molecular weight:334.38

    Ref: 4Z-T-8449

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Pyridoxine Impurity 17 DiHCl


    Formula:C16H20N2O5·2HCl
    Molecular weight:320.35 2*36.46

    Ref: 4Z-P-7130

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Rizatriptan Impurity 6

    CAS:
    Formula:C13H12N4O2
    Molecular weight:256.27

    Ref: 4Z-R-1219

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Pemetrexed EP Impurity E Disodium Salt (Pemetrexed Enantiomer Disodium Salt)

    CAS:
    Formula:C20H19N5O6·2Na
    Color and Shape:Off-White Solid
    Molecular weight:425.40 2*22.99

    Ref: 4Z-P-688

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • 6-Hydroxy Ondansetron HCl

    CAS:
    Formula:C18H19N3O2·HCl
    Color and Shape:Off-White Solid
    Molecular weight:309.37 36.46

    Ref: 4Z-O-031

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Zolmitriptan Impurity 1 HCl

    CAS:
    Formula:C10H13N3O2·HCl
    Color and Shape:Brown Solid
    Molecular weight:207.23 36.46

    Ref: 4Z-Z-028

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
    200mg
    2,247.00€
  • Febuxostat Impurity 14

    CAS:
    Formula:C15H16N2OS
    Color and Shape:White To Off-White Solid
    Molecular weight:272.37

    Ref: 4Z-F-3923

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • N-Nitroso Rizatriptan Nitrite


    Formula:C15H18N6O·HNO2
    Molecular weight:298.35 47.01

    Ref: 4Z-R-1245

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Tenofovir Impurity 86


    Formula:C15H17N5O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:347.39

    Ref: 4Z-T-02131

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Clopidogrel Impurity 2 Bromide (rac-Clopidogrel Iminium Impurity)

    CAS:
    Formula:C16H15ClNO2S·Br
    Color and Shape:Pale Yellow Solid
    Molecular weight:320.81 79.90

    Ref: 4Z-C-1323

    5mg
    To inquire
    10mg
    825.00€
    25mg
    1,335.00€
    50mg
    2,245.00€
    100mg
    To inquire
  • Oseltamivir Impurity 6

    CAS:
    Formula:C14H22O4
    Molecular weight:254.33

    Ref: 4Z-O-1124

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • 4-Amino-3-Chloro-Pyridine

    CAS:
    Formula:C5H5ClN2
    Color and Shape:Yellow Solid
    Molecular weight:128.56

    Ref: 4Z-F-486

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Tetrabenazine Impurity 41 (2R, 3R, 11bS)

    CAS:
    Formula:C19H29NO3
    Color and Shape:Yellow Solid
    Molecular weight:319.45

    Ref: 4Z-T-7818

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Oseltamivir Impurity 133

    CAS:
    Formula:C22H34N2O10
    Molecular weight:486.52

    Ref: 4Z-O-1193

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Memantine Lactose Adduct 2 HCl


    Formula:C24H41NO10·HCl
    Molecular weight:503.60 36.46

    Ref: 4Z-M-3829

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Prucalopride Impurity 37


    Formula:C10H11BrClNO3
    Color and Shape:White To Off-White Solid
    Molecular weight:308.56

    Ref: 4Z-P-127043

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • (2S,3R,11bR)-Dihydrotetrabenazine-d6

    CAS:
    Formula:C19H23D6NO3
    Molecular weight:325.48

    Ref: 4Z-T-7865

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Pyridoxine Impurity 3

    CAS:
    Formula:C12H15NO6
    Color and Shape:Off-White Solid
    Molecular weight:269.25

    Ref: 4Z-P-7112

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Methotrexate EP Impurity L

    CAS:
    Formula:C13H16N2O5
    Color and Shape:White To Off-White Solid
    Molecular weight:280.28

    Ref: 4Z-M-7010

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Regadenoson Impurity 6

    CAS:
    Formula:C16H19N7O6
    Molecular weight:405.37

    Ref: 4Z-R-095007

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • (3S,4R,5S)-Oseltamivir

    CAS:
    Formula:C16H28N2O4
    Molecular weight:312.41

    Ref: 4Z-O-1132

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Tenofovir Impurity 29

    CAS:
    Formula:C21H22N5O4P
    Color and Shape:Pale Yellow Solid
    Molecular weight:439.41

    Ref: 4Z-T-0230

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • N-Nitroso Clopidogrel Impurity 24

    CAS:
    Formula:C7H8N2OS
    Molecular weight:168.21

    Ref: 4Z-C-1385

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Clopidogrel Impurity 19 Sodium Salt

    CAS:
    Formula:C16H15ClNO5S2·Na
    Molecular weight:400.87 22.99

    Ref: 4Z-C-1348

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Sumatriptan EP Impurity C

    CAS:
    Formula:C15H23N3O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:325.43

    Ref: 4Z-S-119

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Rizatriptan EP Impurity A

    CAS:
    Formula:C28H35N7
    Color and Shape:White To Off-White Solid
    Molecular weight:469.64

    Ref: 4Z-R-1211

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Fampridine Impurity 3

    CAS:
    Formula:C9H12N2O2
    Color and Shape:White To Off-White Solid
    Molecular weight:180.21

    Ref: 4Z-F-4810

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Phenylhydrazine HCl

    CAS:
    Formula:C6H8N2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:108.14 36.46

    Ref: 4Z-P-10307

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Naratriptan Impurity 1

    CAS:
    Formula:C17H23N3O2S
    Molecular weight:333.45

    Ref: 4Z-N-2711

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Thiamine Nitrate

    CAS:
    Formula:C12H17N4OS·NO3
    Molecular weight:265.35 62.01

    Ref: 4Z-T-8448

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Prucalopride Impurity 1

    CAS:
    Formula:C18H24ClN3O3
    Color and Shape:Off-White Solid
    Molecular weight:365.86

    Ref: 4Z-P-127006

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Oxypurinol

    CAS:
    Formula:C5H4N4O2
    Color and Shape:White To Off-White Solid
    Molecular weight:152.11

    Ref: 4Z-A-693

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Pyridoxine Impurity 1


    Formula:C16H20N2O5
    Color and Shape:White To Off-White Solid
    Molecular weight:320.35

    Ref: 4Z-P-7110

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • Lifitegrast

    CAS:
    Formula:C29H24Cl2N2O7S
    Color and Shape:Off-White Solid
    Molecular weight:615.48

    Ref: 4Z-L-153001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    30mg
    663.00€
    50mg
    825.00€
    100mg
    To inquire
  • Tenofovir Disoproxil USP Related Compound A ((S)-Tenofovir Disoproxil Fumarate)

    CAS:
    Formula:C19H30N5O10P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:519.45 116.07

    Ref: 4Z-T-0214

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Theophylline Impurity 19 (Mixture of Z and E Isomers)

    CAS:
    Formula:C8H12O4
    Color and Shape:Colorless Liquid
    Molecular weight:172.18

    Ref: 4Z-T-6029

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Thiamine EP Impurity A Sulfate

    CAS:
    Formula:C12H16N4O4S2·H2SO4
    Color and Shape:Off-White Solid
    Molecular weight:344.40 98.07

    Ref: 4Z-T-8440

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Regadenoson Impurity 5

    CAS:
    Formula:C10H12ClN5O4
    Molecular weight:301.69

    Ref: 4Z-R-095006

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Xanthine

    CAS:
    Formula:C5H4N4O2
    Molecular weight:152.11

    Ref: 4Z-X-005001

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Ref: 4Z-M-834

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • Febuxostat Impurity 5

    CAS:
    Formula:C14H12N2O3S
    Color and Shape:Off-White To Pale Yellow Solid
    Molecular weight:288.32

    Ref: 4Z-F-3914

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Ondansetron-13C-d3

    CAS:
    Formula:C1713CH16D3N3O
    Color and Shape:White To Off-White Solid
    Molecular weight:297.38

    Ref: 4Z-O-035

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Tenofovir

    CAS:
    Formula:C9H14N5O4P
    Color and Shape:White To Off-White Solid
    Molecular weight:287.22

    Ref: 4Z-T-023

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Ondansetron EP Impurity F

    CAS:
    Formula:C4H6N2
    Color and Shape:White To Off-White Solid
    Molecular weight:82.11

    Ref: 4Z-O-0313

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • 3-Iodo-L-Tyrosine

    CAS:
    Formula:C9H10INO3
    Molecular weight:307.09

    Ref: 4Z-T-144021

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Thiamine Impurity 21 DiHCl


    Formula:C15H22N6O2S·2HCl
    Molecular weight:350.45 2*36.46

    Ref: 4Z-T-8445

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • 8-Hydroxy Ondansetron

    CAS:
    Formula:C18H19N3O2
    Color and Shape:White To Off-White Solid
    Molecular weight:309.37

    Ref: 4Z-O-033

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Pyridoxine EP Impurity B HCl

    CAS:
    Formula:C8H11NO2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:153.18 36.46

    Ref: 4Z-P-7133

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Clopidogrel EP Impurity E (R-Isomer)

    CAS:
    Formula:C15H15ClN2OS
    Color and Shape:White To Off-White Solid
    Molecular weight:306.81

    Ref: 4Z-C-1345

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Clopidogrel EP Impurity B HCl (Clopidogrel USP Related Compound B (S-Isomer))

    CAS:
    Formula:C16H16ClNO2S·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:321.82 36.46

    Ref: 4Z-C-1311

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • N-Nitroso Rizatriptan Impurity 26 HCl


    Formula:C15H20N6O·HCl
    Molecular weight:300.37 36.46

    Ref: 4Z-R-1249

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Theophylline-d6 (Dimenhydrinate EP Impurity A-d6, Diprophylline EP Impurity B-d6)

    CAS:
    Formula:C7H2D6N4O2
    Color and Shape:White To Off-White Solid
    Molecular weight:186.20

    Ref: 4Z-T-6012

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Thiamine Impurity 31 DiHCl

    CAS:
    Formula:C6H10N4·2HCl
    Molecular weight:138.17*36.46

    Ref: 4Z-T-8458

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Ref: 4Z-T-6050

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Ref: 4Z-M-7033

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Pyridoxine Impurity 25 Chloride HCl


    Formula:C16H21N2O5·Cl·HCl
    Molecular weight:321.35 35.45 36.46

    Ref: 4Z-P-7147

    5mg
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    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Naratriptan Impurity 12 Iodide

    CAS:
    Formula:C20H27N4O4S2·I
    Color and Shape:Pale Yellow Solid
    Molecular weight:451.58 126.91

    Ref: 4Z-N-2710

    5mg
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    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Temozolomide Impurity 4

    CAS:
    Formula:C6H9N5O2
    Color and Shape:Off-White Solid
    Molecular weight:184.17

    Ref: 4Z-T-3410

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Oseltamivir Impurity 21

    CAS:
    Formula:C15H26O7S
    Molecular weight:350.43

    Ref: 4Z-O-1149

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
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  • Methotrexate EP Impurity K (Folinic Acid EP Impurity A)

    CAS:
    Formula:C12H14N2O5
    Color and Shape:Light Brown Solid
    Molecular weight:266.25

    Ref: 4Z-M-7016

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Mono-POC Methyl Tenofovir Fumarate (Mixture of Diastereomers)

    CAS:
    Formula:C15H24N5O7P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:417.36 116.07

    Ref: 4Z-T-0218

    5mg
    To inquire
    10mg
    1,942.00€
    25mg
    3,580.00€
    50mg
    5,764.00€
    100mg
    To inquire
  • Sapropterin Impurity 1 Trifluoroacetate (Mixture of Isomers)


    Formula:C9H14N4O4·C2HF3O2
    Molecular weight:242.24 114.02

    Ref: 4Z-S-315

    5mg
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    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
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  • Febuxostat Impurity 34

    CAS:
    Formula:C15H17NO3S
    Color and Shape:White To Off-White Solid
    Molecular weight:291.37

    Ref: 4Z-F-3948

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
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  • Migalastat Impurity 1 (Lucerastat)

    CAS:
    Formula:C10H21NO4
    Molecular weight:219.28

    Ref: 4Z-M-249003

    5mg
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    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
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  • Pemetrexed Impurity 12

    CAS:
    Formula:C22H25N5O6
    Color and Shape:Off-White Solid
    Molecular weight:455.47

    Ref: 4Z-P-6813

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Memantine Lactose Adduct

    CAS:
    Formula:C24H41NO10
    Color and Shape:Pale Brown Solid
    Molecular weight:503.59

    Ref: 4Z-M-3817

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Idelalisib

    CAS:
    Formula:C22H18FN7O
    Color and Shape:White To Off-White Solid
    Molecular weight:415.43

    Ref: 4Z-I-084001

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
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  • Pyridoxine Impurity 7


    Formula:C16H20N2O5
    Color and Shape:White To Off-White Solid
    Molecular weight:320.35

    Ref: 4Z-P-7116

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • rac-Tenofovir-d7

    CAS:
    Formula:C9H7D7N5O4P
    Color and Shape:White To Off-White Solid
    Molecular weight:294.26

    Ref: 4Z-T-026

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • trans-Dihydro Tetrabenazine

    CAS:
    Formula:C19H29NO3
    Color and Shape:White To Off-White Solid
    Molecular weight:319.45

    Ref: 4Z-T-783

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • 8-Benzyl Theophylline

    CAS:
    Formula:C14H14N4O2
    Color and Shape:White To Off-White Solid
    Molecular weight:270.29

    Ref: 4Z-T-6014

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Tenofovir Impurity 30

    CAS:
    Formula:C15H18N5O4P
    Color and Shape:White To Off-White Solid
    Molecular weight:363.31

    Ref: 4Z-T-0231

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Ref: 4Z-C-1810

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Prucalopride Impurity 29


    Formula:C17H24ClN3O2
    Color and Shape:White To Off-White Solid
    Molecular weight:337.85

    Ref: 4Z-P-127035

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • 3-Desmethyl Istradefylline

    CAS:
    Formula:C19H22N4O4
    Color and Shape:Pale Yellow Solid
    Molecular weight:370.41

    Ref: 4Z-I-064002

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Tenofovir Impurity 95

    CAS:
    Formula:C8H10BrN5
    Color and Shape:Pale Yellow Solid
    Molecular weight:256.11

    Ref: 4Z-T-02140

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Allopurinol EP Impurity D (Allopurinol USP Related Compound D)

    CAS:
    Formula:C6H9N3O2
    Color and Shape:Pale Brown Solid
    Molecular weight:155.16

    Ref: 4Z-A-697

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Frovatriptan Impurity 18

    CAS:
    Formula:C14H15N3
    Molecular weight:225.30

    Ref: 4Z-F-1726

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • 1-Methylnicotinamide Iodide

    CAS:
    Formula:C7H9N2O·I
    Color and Shape:Pale Yellow Solid
    Molecular weight:137.16 126.91

    Ref: 4Z-N-133003

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
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  • Caffeine Impurity 3

    CAS:
    Formula:C7H10N4O3
    Color and Shape:White To Off-White Solid
    Molecular weight:198.18

    Ref: 4Z-C-1812

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Tenofovir Related Compound 10

    CAS:
    Formula:C8H11N5O
    Color and Shape:Off-White Solid
    Molecular weight:193.21

    Ref: 4Z-T-0244

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • 2,4,6-Triaminopyrimidine

    CAS:
    Formula:C4H7N5
    Molecular weight:125.14

    Ref: 4Z-P-212011

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Tenofovir Impurity 33 Disodium Salt

    CAS:
    Formula:C12H17N6O5P·2Na
    Molecular weight:358.29 2*22.99

    Ref: 4Z-T-0277

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Rizatriptan EP Impurity I Benzoate (N-Monodesmethyl Rizatriptan Benzoate)

    CAS:
    Formula:C14H17N5·C7H6O2
    Color and Shape:White To Off-White Solid
    Molecular weight:255.33 122.12

    Ref: 4Z-R-125

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Regadenoson Impurity 30

    CAS:
    Formula:C10H12ClN5O4
    Molecular weight:301.69

    Ref: 4Z-R-095031

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Tenofovir Impurity 37

    CAS:
    Formula:C10H15O6PS
    Color and Shape:Pale Yellow Liquid
    Molecular weight:294.26

    Ref: 4Z-T-0281

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • (S)-Clopidogrel N-Oxide

    CAS:
    Formula:C16H16ClNO3S
    Color and Shape:Pale Yellow Semi-Solid
    Molecular weight:337.82

    Ref: 4Z-C-1352

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Istradefylline Dimer Impurity 1 (Mixture of Diastereomers)


    Formula:C40H50N8O8
    Color and Shape:White To Off-White Solid
    Molecular weight:770.89

    Ref: 4Z-I-064003

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Nicotinamide EP Impurity E (Nicotinamide N-Oxide)

    CAS:
    Formula:C6H6N2O2
    Molecular weight:138.13

    Ref: 4Z-N-133017

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Tenofovir Impurity 31 (Mixture of Isomers)


    Formula:C16H20N5O4P
    Color and Shape:Colorless Liquid
    Molecular weight:2 377.34

    Ref: 4Z-T-0275

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Frovatriptan Impurity 15


    Formula:C14H17N3O2
    Color and Shape:Pale Gray Solid
    Molecular weight:259.31

    Ref: 4Z-F-1722

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • Pyridoxal-d3 HCl

    CAS:
    Formula:C8H6D3NO3·HCl
    Color and Shape:White Solid
    Molecular weight:170.18 36.46

    Ref: 4Z-P-715

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Rizatriptan Impurity 1


    Formula:C15H22N6
    Color and Shape:Orange-Yellow Solid
    Molecular weight:286.38

    Ref: 4Z-R-1220

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Tetrabenazine Impurity 42 (2S, 3S, 11bR)

    CAS:
    Formula:C19H29NO3
    Color and Shape:Off-White Solid
    Molecular weight:319.45

    Ref: 4Z-T-7819

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Almotriptan EP Impurity A Malate (Almotriptan USP Related Compound C Malate)

    CAS:
    Formula:C16H23N3O2S·C4H6O5
    Color and Shape:Off-White Solid
    Molecular weight:321.44 134.09

    Ref: 4Z-A-055

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Nicotinic Acid EP Impurity F (5-Nitronicotinic Acid)

    CAS:
    Formula:C6H4N2O4
    Color and Shape:Yellow Solid
    Molecular weight:168.11

    Ref: 4Z-N-056003

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Prucalopride Impurity 25

    CAS:
    Formula:C14H18ClN3O2
    Color and Shape:White To Off-White Solid
    Molecular weight:295.77

    Ref: 4Z-P-127031

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    1,148.00€
  • Guanosine

    CAS:
    Formula:C10H13N5O5
    Color and Shape:White To Off-White Solid
    Molecular weight:283.24

    Ref: 4Z-G-245

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Thiamine Triphosphate Trioctylamine

    CAS:
    Formula:C12H19N4O10P3S·3C8H19N
    Molecular weight:504.28 3*129.25

    Ref: 4Z-T-8451

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • rac-Liothyronine-15N-13C9

    CAS:
    Formula:C613C9H12I315NO4
    Color and Shape:White To Off-White Solid
    Molecular weight:660.90

    Ref: 4Z-T-424

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Pemetrexed EP Impurity D Monosodium Salt

    CAS:
    Formula:C25H27N6O9·Na
    Color and Shape:Blue Solid
    Molecular weight:555.52 22.99

    Ref: 4Z-P-6849

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Fampridine-d4 (Dalfampridine-d4, 4-Aminopyridine-d4)

    CAS:
    Formula:C5H2D4N2
    Color and Shape:Off-White Solid
    Molecular weight:98.14

    Ref: 4Z-F-481

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Trifluridine

    CAS:
    Formula:C10H11F3N2O5
    Color and Shape:White To Off-White Solid
    Molecular weight:296.20

    Ref: 4Z-T-182001

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Istradefylline Dimer Impurity 2

    CAS:
    Formula:C40H48N8O8
    Color and Shape:White To Off-White Solid
    Molecular weight:768.87

    Ref: 4Z-I-064007

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Memantine EP Impurity B HCl (Memantine USP Related Compound H)

    CAS:
    Formula:C13H23N·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:193.33 36.46

    Ref: 4Z-M-3813

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Tetrabenazine Impurity 37

    CAS:
    Formula:C19H27NO3
    Color and Shape:White To Off-White Solid
    Molecular weight:317.43

    Ref: 4Z-T-7810

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Febuxostat Impurity 32 HCl

    CAS:
    Formula:C12H11NO3S·HCl
    Color and Shape:Yellow Solid
    Molecular weight:249.29 36.46

    Ref: 4Z-F-3946

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • 2-Guanidinobenzoic Acid HCl

    CAS:
    Formula:C8H9N3O2·HCl
    Molecular weight:179.18 36.46

    Ref: 4Z-G-178016

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Caffeine EP Impurity C (Caffeine USP Related Compound C, Isocaffeine)

    CAS:
    Formula:C8H10N4O2
    Color and Shape:White To Off-White Solid
    Molecular weight:194.19

    Ref: 4Z-C-184

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Febuxostat Isopropoxy Acid

    CAS:
    Formula:C15H14N2O3S
    Molecular weight:302.35

    Ref: 4Z-F-3934

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • N-Nitroso Theophylline EP Impurity D


    Formula:C6H9N5O2
    Molecular weight:183.17

    Ref: 4Z-T-6037

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Febuxostat Impurity 62

    CAS:
    Formula:C20H25NO4S
    Color and Shape:Yellow Solid
    Molecular weight:375.48

    Ref: 4Z-F-3974

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Topiroxostat Impurity 2


    Formula:C7H8N4O2
    Color and Shape:White To Off-White Solid
    Molecular weight:180.17

    Ref: 4Z-T-148003

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Methotrexate EP Impurity A

    CAS:
    Formula:C7H8N6O
    Color and Shape:Yellow Solid
    Molecular weight:192.18

    Ref: 4Z-M-702

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
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  • Almotriptan Impurity 6 DiHCl (Almotriptan N-Dimer Impurity DiHCl)


    Formula:C30H41N5O2S·2HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:535.76 2 36.46

    Ref: 4Z-A-0518

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Oseltamivir EP Impurity E HCl

    CAS:
    Formula:C15H26N2O4·HCl
    Color and Shape:Off-White Solid
    Molecular weight:298.39 36.46

    Ref: 4Z-O-1112

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Choline Orotate

    CAS:
    Formula:C5H3N2O4·C5H14NO
    Color and Shape:Off-White Solid
    Molecular weight:104.17 155.09

    Ref: 4Z-O-031002

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Topiroxostat Impurity 27


    Formula:C15H10N6O2
    Molecular weight:306.29

    Ref: 4Z-T-148031

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Desmethyl Prucalopride

    CAS:
    Formula:C17H24ClN3O3
    Color and Shape:White To Off-White Solid
    Molecular weight:353.85

    Ref: 4Z-P-127007

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Nicotinamide-d4

    CAS:
    Formula:C6H2D4N2O
    Molecular weight:126.15

    Ref: 4Z-N-133016

    5mg
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    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
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  • Iopamidol EP Impurity J

    CAS:
    Formula:C16H20I3N3O7
    Molecular weight:747.06

    Ref: 4Z-I-4119

    5mg
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    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
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