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Natural and semi-synthetic antibiotics

Natural and semi-synthetic antibiotics

Natural and semisynthetic antibiotics are characterised by chemical structures with heterocyclic rings and active functional groups that inhibit the growth of microorganisms. Their structures allow them to interact with vital bacterial processes, making them useful treatments for bacterial infections. Semisynthetic antibiotics can be modified to enhance their spectrum of activity or resistance to degradation. At CymitQuimica, we offer high-quality natural and semisynthetic antibiotics for research in microbiology and pharmaceutical development.

Found 6320 products of "Natural and semi-synthetic antibiotics"

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  • Ceftaroline Fosamil Impurity 27


    Formula:C29H26N2O7S2
    Color and Shape:White To Off-White Solid
    Molecular weight:578.65

    Ref: 4Z-C-158029

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Potassium Clavulanate EP Impurity J

    CAS:
    Formula:C6H16N2
    Color and Shape:Colourless Liquid
    Molecular weight:116.21

    Ref: 4Z-C-3230

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


    Formula:C17H15N3OS
    Color and Shape:Pale Yellow Solid
    Molecular weight:309.39

    Ref: 4Z-C-126032

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Mutilin Impurity 6


    Formula:C24H36O5
    Molecular weight:404.55

    Ref: 4Z-M-129008

    5mg
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  • Mutilin Impurity 5

    CAS:
    Formula:C20H30O2
    Molecular weight:302.46

    Ref: 4Z-M-129007

    5mg
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  • Linezolid USP Related Compound C

    CAS:
    Formula:C14H18FN3O3
    Color and Shape:Pale Yellow Solid
    Molecular weight:295.31

    Ref: 4Z-L-0712

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Posaconazole Impurity 35 Oxalate


    Formula:C13H20N2O2·C2H2O4
    Color and Shape:White To Off-White Solid
    Molecular weight:236.32 90.03

    Ref: 4Z-P-3856

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Oxytetracycline EP Impurity A Sodium Salt

    CAS:
    Formula:C22H24N2O9·Na
    Molecular weight:460.44 22.99

    Ref: 4Z-O-1611

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

    CAS:
    Formula:C13H12N5O5S2·Na
    Color and Shape:White To Off-White Solid
    Molecular weight:382.40 22.99

    Ref: 4Z-C-1106

    5mg
    To inquire
    10mg
    1,092.00€
    25mg
    1,942.00€
    50mg
    3,034.00€
    100mg
    To inquire
  • Faropenem Impurity 9 Sodium Salt


    Formula:C16H20NO7S·Na
    Color and Shape:White To Off-White Solid
    Molecular weight:370.40 22.99

    Ref: 4Z-F-087017

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Micafungin-d11 Ammonium Salt

    CAS:
    Formula:C56H59D11N9O23S·NH4
    Molecular weight:1280.36 18.04

    Ref: 4Z-PM-127006

    5mg
    To inquire
    10mg
    4,368.00€
    25mg
    8,008.00€
    50mg
    13,104.00€
    100mg
    To inquire
  • Bacitracin EP Impurity L


    Formula:C66H103N17O16S
    Molecular weight:1422.71

    Ref: 4Z-PB-073018

    5mg
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    10mg
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  • 7-O-Nitroso Lincomycin


    Formula:C18H33N3O7S
    Molecular weight:435.54

    Ref: 4Z-L-093031

    5mg
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    10mg
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    25mg
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    50mg
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  • Terbinafine Impurity 3


    Formula:C19H29N
    Color and Shape:Pale Yellow Liquid
    Molecular weight:271.45

    Ref: 4Z-T-5419

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • 9-Chloroacetamidominocycline

    CAS:
    Formula:C25H29ClN4O8
    Molecular weight:548.98

    Ref: 4Z-M-3437

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

    CAS:
    Formula:C13H9ClFNO3
    Color and Shape:White To Off-White Solid
    Molecular weight:281.67

    Ref: 4Z-C-085

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Ampicillin EP Impurity D Disodium Salt (Mixture of Diastereomers)

    CAS:
    Formula:C16H19N3O5S·2Na
    Color and Shape:Off-White Solid
    Molecular weight:365.41 2*22.99

    Ref: 4Z-A-664

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

    CAS:
    Formula:C14H22N2O5S·HCl
    Molecular weight:330.40 36.46

    Ref: 4Z-P-234005

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

    CAS:
    Formula:C8H9N3O5S
    Color and Shape:White To Off-White Solid
    Molecular weight:259.24

    Ref: 4Z-C-9112

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


    Formula:C23H21ClN4O5S
    Color and Shape:White To Off-White Solid
    Molecular weight:500.95

    Ref: 4Z-C-667

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Cephalexin Impurity 9

    CAS:
    Formula:C11H11N3O2
    Molecular weight:217.23

    Ref: 4Z-C-4733

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Cilastatin Impurity 3


    Formula:C13H21NO4
    Color and Shape:White To Off-White Solid
    Molecular weight:255.31

    Ref: 4Z-C-136014

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Thiamphenicol-d3

    CAS:
    Formula:C12H12D3Cl2NO5S
    Color and Shape:Off-White Solid
    Molecular weight:359.23

    Ref: 4Z-T-611

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Bacitracin EP Impurity A Tritrifluoroacetate

    CAS:
    Formula:C64H99N17O16S·3C2HF3O2
    Molecular weight:1394.66 3*114.02

    Ref: 4Z-PB-073008

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Amoxicillin EP Impurity A (Sulbactam EP Impurity B, Piperacillin EP Impurity H, Amoxicillin USP Related Compound A)

    CAS:
    Formula:C8H12N2O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:216.26

    Ref: 4Z-A-233

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

    CAS:
    Formula:C41H76N2O14
    Color and Shape:White To Off-White Solid
    Molecular weight:821.06

    Ref: 4Z-D-106008

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

    CAS:
    Formula:C26H30N6O7S2
    Color and Shape:White To Off-White Solid
    Molecular weight:602.68

    Ref: 4Z-C-10504

    5mg
    To inquire
    10mg
    635.00€
    25mg
    1,032.00€
    50mg
    1,699.00€
    100mg
    To inquire
  • Spectinomycin EP Impurity A

    CAS:
    Formula:C8H18N2O4
    Molecular weight:206.24

    Ref: 4Z-S-515

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

    CAS:
    Formula:C38H67NO12
    Color and Shape:White To Off-White Solid
    Molecular weight:729.95

    Ref: 4Z-C-3714

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Cefixime Impurity 16


    Formula:C32H28N10O13S4
    Molecular weight:888.87

    Ref: 4Z-C-9131

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

    CAS:
    Formula:C44H48F2N8O4
    Color and Shape:White To Off-White Solid
    Molecular weight:790.92

    Ref: 4Z-P-3876

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Rifaximin EP Impurity B (Rifamycin B)

    CAS:
    Formula:C39H49NO14
    Molecular weight:755.81

    Ref: 4Z-R-3511

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Tazobactam Acid Impurity 13

    CAS:
    Formula:C23H22N4O5S
    Color and Shape:White To Off-White Solid
    Molecular weight:466.51

    Ref: 4Z-T-127022

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Cefamandole Impurity 27-d5


    Formula:C16H10D5N5O5S
    Molecular weight:394.42

    Ref: 4Z-C-162036

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Avibactam-13C5-15N Sodium Salt

    CAS:
    Formula:C213C5H10N215NO6S·Na
    Molecular weight:270.19 22.99

    Ref: 4Z-A-192067

    5mg
    To inquire
    10mg
    4,854.00€
    25mg
    8,979.00€
    50mg
    14,560.00€
    100mg
    To inquire
  • Posaconazole Impurity 8


    Formula:C29H37N5O3
    Color and Shape:White To Off-White Solid
    Molecular weight:503.65

    Ref: 4Z-P-3828

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

    CAS:
    <p>Puromycin (NSC-3055) is an antibiotic protein synthesis inhibitor.</p>
    Formula:C22H29N7O5
    Purity:98%
    Color and Shape:Solid
    Molecular weight:471.51
  • Ivermectin EP Impurity C (Avermectin B2a)

    CAS:
    Formula:C48H74O15
    Color and Shape:White To Off-White Solid
    Molecular weight:891.11

    Ref: 4Z-I-077009

    5mg
    To inquire
    10mg
    7,280.00€
    25mg
    13,347.00€
    50mg
    21,840.00€
    100mg
    To inquire
  • Lomefloxacin Impurity 2 HCl


    Formula:C17H20FN3O4·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:349.36 36.46

    Ref: 4Z-L-128003

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Erythromycin A (6,9-Imino Ether)

    CAS:
    Formula:C37H66N2O12
    Color and Shape:White To Off-White Solid
    Molecular weight:730.94

    Ref: 4Z-E-207

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

    CAS:
    Formula:C14H15F2N3O2
    Color and Shape:Off-White Solid
    Molecular weight:295.29

    Ref: 4Z-P-3824

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

    CAS:
    Formula:C19H23F2N4O3·Na
    Color and Shape:Yellow Solid
    Molecular weight:393.42 22.99

    Ref: 4Z-S-075

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Emamectin B1a Benzoate


    Formula:C49H75NO13·C7H6O2
    Molecular weight:886.13 122.12

    Ref: 4Z-E-425

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Tacrolimus EP Impurity I (Tacrolimus Diene)

    CAS:
    Formula:C44H67NO11
    Color and Shape:White To Off-White Solid
    Molecular weight:786.02

    Ref: 4Z-T-395

    5mg
    To inquire
    10mg
    1,092.00€
    25mg
    1,942.00€
    50mg
    3,034.00€
    100mg
    To inquire
  • Moxidectin-d3

    CAS:
    Formula:C37H50D3NO8
    Molecular weight:642.85

    Ref: 4Z-M-591

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

    CAS:
    Formula:C6H13N3O5S
    Molecular weight:239.25

    Ref: 4Z-A-192002

    5mg
    To inquire
    10mg
    1,335.00€
    25mg
    2,366.00€
    50mg
    3,944.00€
    100mg
    To inquire
  • Faropenem Sodium Salt

    CAS:
    Formula:C12H14NO5S·Na
    Color and Shape:White To Off-White Solid
    Molecular weight:284.31 22.99

    Ref: 4Z-F-087015

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Terbinafine Impurity 2 HCl

    CAS:
    Formula:C15H16ClN·HCl
    Molecular weight:245.75 36.46

    Ref: 4Z-T-5418

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Moxifloxacin Impurity 18

    CAS:
    Formula:C14H13FN2O4
    Color and Shape:Off-White Solid
    Molecular weight:292.27

    Ref: 4Z-M-2713

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

    CAS:
    Formula:C26H24Cl3NO
    Color and Shape:Pale Yellow Solid
    Molecular weight:472.85

    Ref: 4Z-L-294

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