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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 6343 products of "Natural and semi-synthetic antibiotics"

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  • N-Nitroso Desbutyl Lumefantrine (Mixture of Z and E Isomers)


    Formula:C26H23Cl3N2O2
    Molecular weight:501.83

    Ref: 4Z-L-2924

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

    CAS:
    Formula:C18H13D3N8O7S3·2Na
    Color and Shape:Off-White Solid
    Molecular weight:555.57 2*22.99

    Ref: 4Z-C-931

    5mg
    To inquire
    10mg
    1,942.00€
    25mg
    3,580.00€
    50mg
    5,764.00€
    100mg
    To inquire
  • Furaltadone HCl

    CAS:
    Formula:C13H16N4O6·HCl
    Color and Shape:Yellow Solid
    Molecular weight:324.30 36.46

    Ref: 4Z-F-131001

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Cefotaxime Impurity 8

    CAS:
    Formula:C6H7N3O3S
    Color and Shape:Off-White Solid
    Molecular weight:201.20

    Ref: 4Z-C-106021

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

    CAS:
    Formula:C19H21ClFN3O3·HCl
    Color and Shape:Yellow Solid
    Molecular weight:393.85 34.46

    Ref: 4Z-B-100004

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Fosfomycin Trometamol EP Impurity A Di-Ammonium Salt

    CAS:
    Formula:C3H9O5P·2H3N
    Color and Shape:Pale Yellow Semi-Solid
    Molecular weight:156.08 2 17.03

    Ref: 4Z-F-473

    5mg
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    10mg
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    25mg
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    50mg
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    100mg
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  • Erythromycin Impurity 9 (Cycloester Erythromycin Enol Ether)

    CAS:
    Formula:C38H63NO13
    Color and Shape:White To Off-White Solid
    Molecular weight:741.92

    Ref: 4Z-E-2045

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

    CAS:
    Formula:C38H72N2O12
    Color and Shape:White To Off-White Solid
    Molecular weight:749.00

    Ref: 4Z-A-2617

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Lomefloxacin HCl

    CAS:
    Formula:C17H19F2N3O3·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:351.35 36.46

    Ref: 4Z-L-128001

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Posaconazole Impurity 66

    CAS:
    Formula:C21H21F2N3O2
    Color and Shape:Pale Yellow Oil
    Molecular weight:385.41

    Ref: 4Z-P-3899

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

    CAS:
    Formula:C13H19N3O2
    Molecular weight:249.31

    Ref: 4Z-A-192004

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Cefotaxime Impurity 5 Sodium Salt


    Formula:C14H14N5O6S2·Na
    Molecular weight:412.43 22.99

    Ref: 4Z-C-106018

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Clindamycin Hydrochloride EP Impurity E HCl (Mixture of Z and E Isomers)

    CAS:
    Formula:C18H31ClN2O5S·HCl
    Color and Shape:Off-White Solid
    Molecular weight:422.98 36.46

    Ref: 4Z-C-5053

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Tedizolid Impurity 73


    Formula:C19H20FN6O6P
    Molecular weight:478.38

    Ref: 4Z-T-163078

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Piperacillin Impurity 24


    Formula:C7H15NO4S
    Molecular weight:209.26

    Ref: 4Z-P-7441

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

    CAS:
    Formula:C8H9N5O3S
    Molecular weight:255.25

    Ref: 4Z-C-7837

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Azithromycin Impurity 4


    Formula:C8H16O4
    Color and Shape:Colorless Liquid
    Molecular weight:176.21

    Ref: 4Z-A-2627

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

    CAS:
    Formula:C39H72N2O13
    Color and Shape:White To Off-White Solid
    Molecular weight:777.01

    Ref: 4Z-C-3715

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

    CAS:
    Formula:C29H40O7S
    Color and Shape:White To Off-White Solid
    Molecular weight:532.69

    Ref: 4Z-T-947

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Clindamycin Impurity 59 HCl


    Formula:C31H57ClN2O6S·HCl
    Molecular weight:621.33 36.46

    Ref: 4Z-C-50112

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