CymitQuimica logo
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"

Sort by

Purity (%)
0
100
|
0
|
50
|
90
|
95
|
100
products per page.
  • N-Nitroso Zolmitriptan


    Formula:C16H20N4O3
    Color and Shape:Yellow Semi-Solid
    Molecular weight:316.36

    Ref: 4Z-Z-0233

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

    CAS:
    Formula:C15H11I4NO4
    Color and Shape:White To Off-White Solid
    Molecular weight:776.87

    Ref: 4Z-T-4223

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Desmethyl Prucalopride Acid Metabolite


    Formula:C17H22ClN3O4
    Molecular weight:367.83

    Ref: 4Z-P-127069

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • 1-Methylnicotinamide-13C-d3 Iodide

    CAS:
    Formula:C613CH6D3N2O·I
    Color and Shape:Pale Yellow Solid
    Molecular weight:141.17 126.91

    Ref: 4Z-N-133004

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


    Formula:C17H23N3O3
    Color and Shape:White To Off-White Solid
    Molecular weight:317.39

    Ref: 4Z-Z-0215

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Allopurinol-13C3-15N

    CAS:
    Formula:C213C3H4N315NO
    Molecular weight:140.08

    Ref: 4Z-A-6911

    5mg
    To inquire
    10mg
    3,155.00€
    25mg
    5,824.00€
    50mg
    9,646.00€
    100mg
    To inquire
  • Almotriptan Hydrazine Precursor HCl

    CAS:
    Formula:C11H17N3O2S·HCl
    Color and Shape:Off-White Solid
    Molecular weight:255.34 36.46

    Ref: 4Z-A-0510

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • 3-Iodo-D-Tyrosine

    CAS:
    Formula:C9H10INO3
    Molecular weight:307.09

    Ref: 4Z-T-144036

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • rac-Eletriptan-d3 HBr

    CAS:
    Formula:C22H23D3N2O2S·HBr
    Color and Shape:Pale Brown Solid
    Molecular weight:385.54 80.91

    Ref: 4Z-E-122

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Temozolomide Impurity 15

    CAS:
    Formula:C5H5N5
    Color and Shape:Grey Solid
    Molecular weight:135.13

    Ref: 4Z-T-3424

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Nicotinic Acid EP Impurity D (Isocinchomeronic Acid)

    CAS:
    Formula:C7H5NO4
    Color and Shape:Pale Yellow Solid
    Molecular weight:167.12

    Ref: 4Z-N-056006

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

    CAS:
    Formula:C9H11NO3
    Color and Shape:White To Off-White Solid
    Molecular weight:181.19

    Ref: 4Z-T-144015

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • N-Desmethyl Eletriptan

    CAS:
    Formula:C21H24N2O2S
    Color and Shape:Brown Solid
    Molecular weight:368.50

    Ref: 4Z-E-124

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Doxofylline Impurity 1

    CAS:
    Formula:C10H16N4O3
    Color and Shape:Off-White Solid
    Molecular weight:240.26

    Ref: 4Z-D-129002

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

    CAS:
    Formula:C16H28N2O4·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:312.41 36.46

    Ref: 4Z-O-111

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Oxypurinol-13C3-15N3

    CAS:
    Formula:C213C3H4N15N3O2
    Color and Shape:Off-White Solid
    Molecular weight:158.07

    Ref: 4Z-A-6914

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Phenylalanyl-Tryptophane-d5 (Mixture of Diastereomers)


    Formula:C20H16D5N3O3
    Color and Shape:Pale Yellow Solid
    Molecular weight:356.44

    Ref: 4Z-P-217009

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Ref: 4Z-M-7042

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • Lifitegrast Impurity 16


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

    Ref: 4Z-L-153018

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • rac-Iopamidol EP Impurity J

    CAS:
    Formula:C16H20I3N3O7
    Color and Shape:White To Off-White Solid
    Molecular weight:747.06

    Ref: 4Z-I-416

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    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
  • 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
  • Doxofylline-d4

    CAS:
    Formula:C11H10D4N4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:270.28

    Ref: 4Z-D-129008

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

    CAS:
    Formula:C17H25N3O2S
    Color and Shape:Off-White To Pale Yellow Solid
    Molecular weight:335.47

    Ref: 4Z-N-271

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    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
  • (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 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
  • 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
  • Pemetrexed Impurity 6


    Formula:C24H30N6O8
    Color and Shape:Off-White Solid
    Molecular weight:530.54

    Ref: 4Z-P-6825

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Prucalopride Impurity 38

    CAS:
    Formula:C10H9BrClNO4
    Color and Shape:White To Off-White Solid
    Molecular weight:322.54

    Ref: 4Z-P-127044

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Febuxostat Impurity 19

    CAS:
    Formula:C13H13NO3S
    Color and Shape:Off-White Solid
    Molecular weight:263.31

    Ref: 4Z-F-3928

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    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
  • 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
  • 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
    To inquire
  • 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
    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
    To inquire
  • 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
    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 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
  • 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
  • Ref: 4Z-C-1810

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


    Formula:C9H11N5O
    Color and Shape:Pale Brown Solid
    Molecular weight:205.22

    Ref: 4Z-T-347

    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
  • Palonosetron USP Related Compound A (Palonosetron N-Oxide)

    CAS:
    Formula:C19H24N2O2
    Color and Shape:White To Off-White Solid
    Molecular weight:312.41

    Ref: 4Z-P-533

    5mg
    To inquire
    10mg
    825.00€
    25mg
    1,335.00€
    50mg
    2,245.00€
    100mg
    To inquire
  • Thiamine-d4 Chloride HCl

    CAS:
    Formula:C12H13D4N4OS·Cl·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:269.38 35.45 36.46

    Ref: 4Z-T-8415

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Almotriptan EP Impurity C (Almotriptan USP Related Compound A, N-Hydroxymethyl Almotriptan)

    CAS:
    Formula:C18H27N3O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:365.50

    Ref: 4Z-A-057

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Lifitegrast Impurity 14

    CAS:
    Formula:C31H28Cl2N2O7S
    Color and Shape:White To Off-White Solid
    Molecular weight:643.53

    Ref: 4Z-L-153016

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • α-Hydroxy Tetrabenazine-d7 (trans-Dihydro Tetrabenazine-d7)

    CAS:
    Formula:C19H22D7NO3
    Color and Shape:White To Off-White Solid
    Molecular weight:326.49

    Ref: 4Z-T-785

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Prucalopride Impurity 36

    CAS:
    Formula:C10H10ClNO4
    Color and Shape:White To Off-White Solid
    Molecular weight:243.64

    Ref: 4Z-P-127042

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Caffeine EP Impurity F (Caffeine USP Related Compound F, Paraxanthine)

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

    Ref: 4Z-C-186

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Febuxostat Impurity 24

    CAS:
    Formula:C18H21NO5S
    Color and Shape:White To Off-White Solid
    Molecular weight:363.43

    Ref: 4Z-F-3939

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Clopidogrel Impurity 32 HCl

    CAS:
    Formula:C16H18ClNO2S·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:323.84 36.46

    Ref: 4Z-C-1310

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Zolmitriptan EP Impurity C (Zolmitriptan USP Related Compound F)

    CAS:
    Formula:C38H53N7O4
    Color and Shape:Yellow Solid
    Molecular weight:671.89

    Ref: 4Z-Z-0212

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

    CAS:
    Formula:C9H12N2O3
    Color and Shape:Colorless Oil
    Molecular weight:196.21

    Ref: 4Z-B-211001

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    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
  • N-Desmethyl ent-Eletriptan HBr

    CAS:
    Formula:C21H24N2O2S·HBr
    Molecular weight:368.50 80.91

    Ref: 4Z-E-1239

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Zolmitriptan Impurity 8 (Mixture of Diastereomers)


    Formula:C16H21N3O4
    Color and Shape:Pale Brown Solid
    Molecular weight:319.36

    Ref: 4Z-Z-0223

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

    CAS:
    Formula:C14H23NO2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:237.34 36.46

    Ref: 4Z-M-3821

    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
  • 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
  • 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
  • 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
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    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
  • 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
  • 2,4-Diamine-5,6-Dichloropyrimidine N3-Oxide

    CAS:
    Formula:C4H4Cl2N4O
    Molecular weight:195.00

    Ref: 4Z-P-212008

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Almotriptan EP Impurity F Malate

    CAS:
    Formula:C19H29N3O2S·C4H6O5
    Color and Shape:Off-White Solid
    Molecular weight:363.53 134.09

    Ref: 4Z-A-0512

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

    CAS:
    Formula:C12H18N4O4PS·Cl
    Color and Shape:White To Off-White Solid
    Molecular weight:345.34 35.45

    Ref: 4Z-T-8419

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    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
  • 2,4-Dinitrophenylhydrazine Impurity 1

    CAS:
    Formula:C8H8N4O4
    Molecular weight:224.18

    Ref: 4Z-P-10306

    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
  • Tenofovir Alafenamide-d5 (Mixture of Diastereomers)

    CAS:
    Formula:C21H24D5N6O5P
    Color and Shape:Yellow Solid
    Molecular weight:481.50

    Ref: 4Z-T-02185

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Sapropterin Impurity 1 Trifluoroacetate (Mixture of Isomers)


    Formula:C9H14N4O4·C2HF3O2
    Molecular weight:242.24 114.02

    Ref: 4Z-S-315

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Frovatriptan Impurity 21

    CAS:
    Formula:C13H15N3O
    Molecular weight:229.28

    Ref: 4Z-F-1729

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • di-Benzyl Miglustat Isomer 1


    Formula:C24H33NO4
    Color and Shape:Off-White Solid
    Molecular weight:399.53

    Ref: 4Z-M-107010

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • 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
  • 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
    To inquire
  • Febuxostat Impurity (2,2'-(4-isobutoxy-1,3-phenylene)bis(4-methylthiazole-5-carboxylic acid))


    Formula:C20H20N2O5S2
    Color and Shape:Pale Yellow Solid
    Molecular weight:432.52

    Ref: 4Z-F-398

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Sumatriptan Succinate

    CAS:
    Formula:C14H21N3O2S·C4H6O4
    Color and Shape:White To Off-White Solid
    Molecular weight:295.40 118.09

    Ref: 4Z-S-111

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

    CAS:
    Formula:C18H21NO5S
    Color and Shape:White To Off-White Solid
    Molecular weight:363.43

    Ref: 4Z-F-3940

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    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
  • 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
  • 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
  • Pemetrexed Impurity 20 Disodium Salt

    CAS:
    Formula:C20H19N5O8·2Na
    Molecular weight:457.40 2*22.99

    Ref: 4Z-P-6821

    5mg
    To inquire
    10mg
    4,368.00€
    25mg
    8,008.00€
    50mg
    13,104.00€
    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
  • Febuxostat Acyl Glucuronide

    CAS:
    Formula:C22H24N2O9S
    Color and Shape:Pale Yellow Solid
    Molecular weight:492.50

    Ref: 4Z-F-392

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Eletriptan N-Oxide

    CAS:
    Formula:C22H26N2O3S
    Color and Shape:Pale Yellow Solid
    Molecular weight:398.53

    Ref: 4Z-E-123

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    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
  • 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
    To inquire
  • Iopamidol EP Impurity E

    CAS:
    Formula:C19H24I3N3O9
    Color and Shape:White To Off-White Solid
    Molecular weight:819.13

    Ref: 4Z-I-414

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

    CAS:
    Formula:C8H9N5O2
    Molecular weight:207.19

    Ref: 4Z-S-3117

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Methotrexate Impurity 3

    CAS:
    Formula:C20H22N8O5
    Color and Shape:Yellow Solid
    Molecular weight:454.45

    Ref: 4Z-M-7030

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Zolmitriptan-d6

    CAS:
    Formula:C16H15D6N3O2
    Color and Shape:Light Yellow Solid
    Molecular weight:293.40

    Ref: 4Z-Z-022

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • Memantine EP Impurity A HCl (Memantine USP Related Compound G)

    CAS:
    Formula:C11H19N·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:165.28 36.46

    Ref: 4Z-M-383

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Prucalopride Impurity 39

    CAS:
    Formula:C12H12Br2ClNO4
    Color and Shape:White To Off-White Solid
    Molecular weight:429.49

    Ref: 4Z-P-127045

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • N-Nitroso Migalastat


    Formula:C6H12N2O5
    Molecular weight:192.17

    Ref: 4Z-M-249004

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    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
  • Prucalopride Impurity 41 (DP-1)

    CAS:
    Formula:C8H8ClNO
    Molecular weight:169.61

    Ref: 4Z-P-127047

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

    CAS:
    Formula:C18H27N3O3
    Color and Shape:White To Off-White Solid
    Molecular weight:333.43

    Ref: 4Z-P-127009

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Regadenoson Impurity 40

    CAS:
    Formula:C5H6O4
    Molecular weight:130.10

    Ref: 4Z-R-095041

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • D-Phenylalaninyl-D-Phenylalanine

    CAS:
    Formula:C18H20N2O3
    Color and Shape:White To Off-White Solid
    Molecular weight:312.37

    Ref: 4Z-P-217006

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Pemetrexed EP Impurity D Trisodium Salt

    CAS:
    Formula:C25H25N6O9·3Na
    Color and Shape:Pale Green Solid
    Molecular weight:553.51 3*22.99

    Ref: 4Z-P-686

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

    CAS:
    Formula:C12H16ClN4S·Cl·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:283.80 35.45 36.46

    Ref: 4Z-T-844

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

    CAS:
    Formula:C9H11N5·2HCl
    Color and Shape:Pale Yellow Solid
    Molecular weight:189.22 2*36.46

    Ref: 4Z-R-1210

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    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
  • Memantine USP Related Compound B (1-Hydroxy-3,5-dimethyladamantane)

    CAS:
    Formula:C12H20O
    Color and Shape:White To Off-White Solid
    Molecular weight:180.29

    Ref: 4Z-M-3815

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    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
  • Trifluridine Impurity 6

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

    Ref: 4Z-T-182007

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

    CAS:
    Formula:C12H21N·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:179.31 36.46

    Ref: 4Z-M-381

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • 4-Desmethyl Istradefylline

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

    Ref: 4Z-I-064001

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Telbivudine-d4

    CAS:
    Formula:C10H10D4N2O5
    Color and Shape:White To Off-White Solid
    Molecular weight:246.26

    Ref: 4Z-T-252

    5mg
    To inquire
    10mg
    1,942.00€
    25mg
    3,580.00€
    50mg
    5,764.00€
    100mg
    To inquire
  • Oseltamivir EP Impurity G

    CAS:
    Formula:C16H28N2O4
    Color and Shape:White To Off-White Solid
    Molecular weight:312.41

    Ref: 4Z-O-117

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • 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€
  • Pyridoxine Impurity 9

    CAS:
    Formula:C8H7NO5
    Color and Shape:Off-White Solid
    Molecular weight:197.15

    Ref: 4Z-P-7118

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


    Formula:C19H19N9O6
    Molecular weight:469.42

    Ref: 4Z-M-7040

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

    CAS:
    Formula:C4H5NO2
    Color and Shape:White To Off-White Solid
    Molecular weight:99.09

    Ref: 4Z-S-131001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Oseltamivir-Fructose Adduct 1 (Amadori Rearrangement Product)


    Formula:C22H38N2O9
    Color and Shape:White To Off-White Solid
    Molecular weight:474.55

    Ref: 4Z-O-1117

    5mg
    To inquire
    10mg
    4,368.00€
    25mg
    8,008.00€
    50mg
    13,104.00€
    100mg
    To inquire
  • 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
  • Febuxostat Impurity 9

    CAS:
    Formula:C12H8N2O3S
    Color and Shape:Pale Yellow Solid
    Molecular weight:260.27

    Ref: 4Z-F-3918

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Palonosetron EP Impurity D HCl (Palonosetron USP Related Compound E)

    CAS:
    Formula:C19H22N2O·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:294.40 36.46

    Ref: 4Z-P-539

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Tenofovir Impurity 7 HCl

    CAS:
    Formula:C6H13NO2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:131.18 36.46

    Ref: 4Z-T-0236

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

    CAS:
    Formula:C17H17N3O
    Color and Shape:White To Off-White Solid
    Molecular weight:279.34

    Ref: 4Z-O-0312

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Oseltamivir EP Impurity B (2-Azido Impurity)


    Formula:C16H29N5O4
    Molecular weight:355.44

    Ref: 4Z-O-1114

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

    CAS:
    Formula:C17H16FN3O
    Color and Shape:Off-White Solid
    Molecular weight:297.33

    Ref: 4Z-I-084010

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Thiamine Triphosphate Trisammonium Salt


    Formula:C12H16N4O10P3S·3NH4
    Molecular weight:501.26 3*18.04

    Ref: 4Z-T-8462

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Oseltamivir Impurity 145

    CAS:
    Formula:C16H28N2O4
    Molecular weight:312.41

    Ref: 4Z-O-1131

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Nicotinic Acid EP Impurity E (Isoniazid EP Impurity A)

    CAS:
    Formula:C6H5NO2
    Color and Shape:White To Off-White Solid
    Molecular weight:123.11

    Ref: 4Z-N-056005

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

    CAS:
    Formula:C15H18N8O5
    Color and Shape:White To Off-White Solid
    Molecular weight:390.36

    Ref: 4Z-R-095001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    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
  • (S)-Frovatriptan-d3 Succinate

    CAS:
    Formula:C14H14N3OD3·C4H6O4
    Color and Shape:White To Off-White Solid
    Molecular weight:246.33 118.09

    Ref: 4Z-F-1719

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Tenofovir Impurity 38

    CAS:
    Formula:C8H11O6PS
    Color and Shape:White To Off-White Solid
    Molecular weight:266.20

    Ref: 4Z-T-0282

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Lifitegrast Impurity 44


    Formula:C31H28Cl2N2O7S
    Color and Shape:Pale Yellow Solid
    Molecular weight:643.53

    Ref: 4Z-L-153046

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Ref: 4Z-M-7056

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • 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
  • Mono-POC Ethyl Tenofovir Fumarate (Mixture of Diastereomers)

    CAS:
    Formula:C16H26N5O7P·C4H4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:431.39 116.07

    Ref: 4Z-T-0255

    5mg
    To inquire
    10mg
    1,942.00€
    25mg
    3,580.00€
    50mg
    5,764.00€
    100mg
    To inquire
  • Rizatriptan EP Impurity E


    Formula:C16H21N5O2S
    Color and Shape:Off-White Solid
    Molecular weight:347.44

    Ref: 4Z-R-1244

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

    CAS:
    Formula:C6H8N2
    Color and Shape:Orange Liquid
    Molecular weight:108.14

    Ref: 4Z-P-10302

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • 2-Deoxyguanosine

    CAS:
    Formula:C10H13N5O4
    Molecular weight:267.25

    Ref: 4Z-G-2441

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Pyridoxine Impurity 8 DiHCl


    Formula:C16H20N2O5·2HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:320.35 2 36.46

    Ref: 4Z-P-7117

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

    CAS:
    Formula:C20H22N8O5
    Color and Shape:Yellow Solid
    Molecular weight:454.45

    Ref: 4Z-M-701

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • N-Nitroso-N-Monodesmethyl Rizatriptan-13C-d3


    Formula:C1313CH13D3NO
    Molecular weight:288.33

    Ref: 4Z-R-1250

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Febuxostat-d7

    CAS:
    Formula:C16H9D7N2O3S
    Color and Shape:Off-White Solid
    Molecular weight:323.42

    Ref: 4Z-F-394

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

    CAS:
    Formula:C13H20N2O2·HCl
    Molecular weight:236.32 36.46

    Ref: 4Z-T-144022

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

    CAS:
    Formula:C16H13ClNO2S·Cl
    Color and Shape:Off-White Solid
    Molecular weight:318.79 35.45

    Ref: 4Z-C-1322

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


    Formula:C7H8N4S
    Color and Shape:White To Off-White Solid
    Molecular weight:180.23

    Ref: 4Z-T-8421

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

    CAS:
    Formula:C36H49N11
    Color and Shape:Yellow Solid
    Molecular weight:635.87

    Ref: 4Z-R-129

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Istradefylline Impurity 4


    Formula:C30H34N4O8
    Color and Shape:Pale Yellow Solid
    Molecular weight:578.62

    Ref: 4Z-I-064009

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

    CAS:
    Formula:C19H13Cl2NO4
    Color and Shape:Pale Yellow Solid
    Molecular weight:390.22

    Ref: 4Z-L-153007

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Iopamidol EP Impurity D

    CAS:
    Formula:C14H15I3N2O7
    Color and Shape:White To Off-White Solid
    Molecular weight:703.99

    Ref: 4Z-I-413

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Trifluridine Related Compound A

    CAS:
    Formula:C10H12N2O7
    Color and Shape:Pale Yellow Solid
    Molecular weight:272.21

    Ref: 4Z-T-182006

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

    CAS:
    Formula:C13H13NO
    Color and Shape:White To Off-White Solid
    Molecular weight:199.25

    Ref: 4Z-O-0311

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • N-Nitroso Sumatriptan Nitrite

    CAS:
    Formula:C14H20N4O3S·HNO2
    Molecular weight:324.40 47.01

    Ref: 4Z-S-1128

    5mg
    To inquire
  • Clopidogrel EP Impurity A (R-Isomer) ((R)-Clopidogrel Carboxylic Acid)

    CAS:
    Formula:C15H14ClNO2S
    Color and Shape:Off-White Solid
    Molecular weight:307.79

    Ref: 4Z-C-1320

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Idelalisib Impurity 8

    CAS:
    Formula:C17H16FN3O
    Color and Shape:White To Off-White Solid
    Molecular weight:297.33

    Ref: 4Z-I-084014

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • n-POC-POC Tenofovir

    CAS:
    Formula:C19H30N5O10P
    Color and Shape:Colorless Semi-Solid
    Molecular weight:519.45

    Ref: 4Z-T-0259

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

    CAS:
    Formula:C16H20N2O4S2
    Color and Shape:Yellow Solid
    Molecular weight:368.47

    Ref: 4Z-P-7127

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Tenofovir Alafenamide (R-Phosphine)

    CAS:
    Formula:C21H29N6O5P
    Molecular weight:476.47

    Ref: 4Z-T-0235

    5mg
    To inquire
    10mg
    2,184.00€
    25mg
    4,004.00€
    50mg
    6,674.00€
    100mg
    To inquire
  • β-Nicotinamide Adenine Dinucleotide Sodium Salt

    CAS:
    Formula:C21H26N7O14P2·Na
    Molecular weight:662.43 22.99

    Ref: 4Z-N-133020

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

    CAS:
    Formula:C13H11FN2O
    Color and Shape:White To Off-White Solid
    Molecular weight:230.24

    Ref: 4Z-I-084006

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • 2-Oxo-Clopidogrel (Mixture of Diastereomers)

    CAS:
    Formula:C16H16ClNO3S
    Color and Shape:Pale Brown Solid
    Molecular weight:337.82

    Ref: 4Z-C-135

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    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
  • Doxofylline Impurity 12

    CAS:
    Formula:C11H16N4O4
    Color and Shape:White To Off-White Solid
    Molecular weight:268.27

    Ref: 4Z-D-129014

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Pyrimidine Impurity 17

    CAS:
    Formula:C27H28ClN7O3S
    Color and Shape:Off-White Solid
    Molecular weight:566.08

    Ref: 4Z-P-212001

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

    CAS:
    Formula:C6H6N6O2
    Color and Shape:Off-White To Pale Pink Solid
    Molecular weight:194.15

    Ref: 4Z-T-341

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

    CAS:
    Formula:C17H17N3O
    Color and Shape:White To Off-White Solid
    Molecular weight:279.34

    Ref: 4Z-O-039

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Memantine Glucuronic Acid Conjugate (Furanose Form)


    Formula:C18H29NO6
    Color and Shape:Off-White Solid
    Molecular weight:355.43

    Ref: 4Z-M-3820

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Zolmitriptan Impurity 16 HCl


    Formula:C10H12N2O2·HCl
    Color and Shape:Pale Yellow Solid
    Molecular weight:192.22 36.46

    Ref: 4Z-Z-0231

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Clopidogrel Metabolite II (Mixture of Diastereomers)

    CAS:
    Formula:C25H26ClNO6S
    Color and Shape:White To Off-White Solid
    Molecular weight:503.99

    Ref: 4Z-C-1317

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Thiamine Impurity 16

    CAS:
    Formula:C6H10N4
    Molecular weight:138.17

    Ref: 4Z-T-8439

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • (3R,11bR)-Tetrabenazine-d6

    CAS:
    Formula:C19H21D6NO3
    Molecular weight:323.47

    Ref: 4Z-T-7866

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    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
  • Pyridoxal-d3 5-Phosphate

    CAS:
    Formula:C8H7D3NO6P
    Color and Shape:Yellow Solid
    Molecular weight:250.16

    Ref: 4Z-P-711

    5mg
    To inquire
    10mg
    4,368.00€
    25mg
    8,008.00€
    50mg
    13,104.00€
    100mg
    To inquire
  • Frovatriptan Succinate

    CAS:
    Formula:C14H17N3O·C4H6O4
    Color and Shape:White To Off-White Solid
    Molecular weight:243.31 118.09

    Ref: 4Z-F-175

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Hydroxy Urea-13C-15N2

    CAS:
    Formula:CH415N2O2
    Molecular weight:79.03

    Ref: 4Z-U-062

    5mg
    To inquire
    10mg
    1,699.00€
    25mg
    3,155.00€
    50mg
    5,096.00€
    100mg
    To inquire
  • ent-Pemetrexed Impurity 13

    CAS:
    Formula:C19H21N5O7
    Molecular weight:431.41

    Ref: 4Z-P-6880

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Pyridoxine Impurity 11

    CAS:
    Formula:C8H11NO4
    Color and Shape:Off-White Solid
    Molecular weight:185.18

    Ref: 4Z-P-7121

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Oseltamivir EP Impurity D

    CAS:
    Formula:C11H13NO4
    Color and Shape:Off-White Solid
    Molecular weight:223.23

    Ref: 4Z-O-1110

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Oseltamivir Impurity 4

    CAS:
    Formula:C14H22O4
    Molecular weight:254.33

    Ref: 4Z-O-1122

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Febuxostat Impurity 33

    CAS:
    Formula:C17H21NO3S
    Color and Shape:White To Off-White Solid
    Molecular weight:319.42

    Ref: 4Z-F-3947

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Iopamidol EP Impurity G

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

    Ref: 4Z-I-4111

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • tri-Benzyl Miglustat Isomer 1 HCl


    Formula:C31H39NO4·HCl
    Color and Shape:Off-White Solid
    Molecular weight:489.66 36.46

    Ref: 4Z-M-107006

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Methotrexate EP Impurity G Enantiomer


    Formula:C28H29N9O6
    Molecular weight:587.60

    Ref: 4Z-M-7044

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Clopidogrel EP Impurity F HCl

    CAS:
    Formula:C15H16ClNO2S·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:309.81 36.46

    Ref: 4Z-C-1326

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

    CAS:
    Formula:C6H5O5O
    Color and Shape:Pale Orange Solid
    Molecular weight:163.14

    Ref: 4Z-P-275001

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Temozolomide EP Impurity C

    CAS:
    Formula:C6H4N6O
    Color and Shape:Off-White Solid
    Molecular weight:176.14

    Ref: 4Z-T-346

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • (S)-Frovatriptan Succinate


    Formula:C14H17N3O·C4H6O4
    Color and Shape:White To Off-White Solid
    Molecular weight:243.31 118.09

    Ref: 4Z-F-172

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
    To inquire
    100mg
    To inquire
  • Ref: 4Z-C-1824

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Istradefylline Impurity 6


    Formula:C19H23N3O5
    Color and Shape:Pale Yellow Solid
    Molecular weight:373.41

    Ref: 4Z-I-064014

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

    CAS:
    Formula:C7H8N4O3
    Color and Shape:White To Off-White Solid
    Molecular weight:196.17

    Ref: 4Z-T-608

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