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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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  • Cefazolin Impurity 11

    CAS:
    Formula:C7H13N5O3
    Color and Shape:White To Off-White Solid
    Molecular weight:215.21

    Ref: 4Z-C-9631

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


    Formula:C41H56N4O12
    Molecular weight:796.92

    Ref: 4Z-R-2316

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

    CAS:
    Formula:C19H38N6O10·4HCl
    Molecular weight:510.54 4*36.46

    Ref: 4Z-T-143006

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Ceftaroline Fosamil Acetate

    CAS:
    Formula:C22H22N8O8PS4·C2H3O2
    Color and Shape:Pale Yellow Solid
    Molecular weight:685.70 59.05

    Ref: 4Z-C-158001

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

    CAS:
    Formula:C15H26N4O7S2
    Molecular weight:438.51

    Ref: 4Z-D-5719

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Cefdinir Impurity 6 (Thiazolylacetylglycine Oxime Acetal)

    CAS:
    Formula:C7H10N4O4S·C7H8N4O3S
    Color and Shape:Pale Yellow Solid
    Molecular weight:246.24 228.23

    Ref: 4Z-C-1108

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

    CAS:
    Formula:C37H65NO12
    Molecular weight:715.92

    Ref: 4Z-E-2018

    5mg
    To inquire
    10mg
    4,368.00€
    25mg
    8,008.00€
    50mg
    13,104.00€
    100mg
    To inquire
  • Tedizolid Impurity 16

    CAS:
    Formula:C16H17FN6O2
    Color and Shape:Off-White Solid
    Molecular weight:344.35

    Ref: 4Z-T-163018

    5mg
    To inquire
    10mg
    910.00€
    25mg
    1,638.00€
    50mg
    2,366.00€
    100mg
    To inquire
  • Tazobactam Acid Impurity 14

    CAS:
    Formula:C21H20N4O5S
    Molecular weight:440.47

    Ref: 4Z-T-127023

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

    CAS:
    Formula:C21H33NO5SSi
    Color and Shape:White To Off-White Solid
    Molecular weight:439.65

    Ref: 4Z-F-087014

    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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  • Clindamycin Impurity 35


    Formula:C18H33ClN2O7S
    Molecular weight:456.98

    Ref: 4Z-C-5087

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

    CAS:
    <p>"Ribostamycin (Vistamycin) is a broad-spectrum antibiotic, effective against many bacteria and inhibits PDI."</p>
    Formula:C17H34N4O10
    Color and Shape:Solid
    Molecular weight:454.47
  • cis-Zearalenone

    CAS:
    Formula:C18H22O5
    Molecular weight:318.37

    Ref: 4Z-Z-162

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Imipenem Impurity 19 (Mixture of Diastereomers)

    CAS:
    Formula:C12H17N3O5S
    Molecular weight:315.34

    Ref: 4Z-I-3625

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Ampicillin Trihydrate EP Impurity N


    Formula:C16H19N3O4S
    Molecular weight:349.41

    Ref: 4Z-A-6638

    5mg
    To inquire
    10mg
    4,854.00€
    25mg
    8,979.00€
    50mg
    14,560.00€
    100mg
    To inquire
  • Potassium Clavulanate EP Impurity H

    CAS:
    Formula:C4H11N
    Color and Shape:Colorless Liquid
    Molecular weight:73.14

    Ref: 4Z-C-3214

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Posaconazole Impurity 63

    CAS:
    Formula:C30H35N5O3
    Molecular weight:513.64

    Ref: 4Z-P-3889

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

    CAS:
    Formula:C26H47N2O·Cl
    Molecular weight:403.67 35.45

    Ref: 4Z-M-217001

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

    CAS:
    Formula:C29H54N2O10
    Molecular weight:590.76

    Ref: 4Z-A-2642

    5mg
    To inquire
    10mg
    698.00€
    25mg
    1,153.00€
    50mg
    2,002.00€
    100mg
    To inquire
  • Avibactam Impurity 76

    CAS:
    Formula:C10H17N3O3
    Molecular weight:227.26

    Ref: 4Z-A-192078

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

    CAS:
    <p>Doxycycline monohydrate is an inhibitor of metalloproteinase (MMP)</p>
    Formula:C22H26N2O9
    Purity:98.87%
    Color and Shape:Solid
    Molecular weight:462.4
  • Cefpodoxime Proxetil EP Impurity C

    CAS:
    Formula:C21H27N5O9S2
    Color and Shape:Pale Brown Solid
    Molecular weight:557.59

    Ref: 4Z-C-854

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

    CAS:
    Formula:C44H69NO12
    Color and Shape:White To Off-White Solid
    Molecular weight:804.03

    Ref: 4Z-T-391

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
    450mg
    2,366.00€
  • Ertapenem-d4 Disodium


    Formula:C22H19N3O7SD42Na
    Molecular weight:477.53 2x22.99

    Ref: 4Z-E-071001

    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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  • Linezolid Impurity 84


    Formula:C17H24FN3O4
    Molecular weight:353.39

    Ref: 4Z-L-07101

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

    CAS:
    Formula:C17H24FN3O4
    Molecular weight:353.39

    Ref: 4Z-L-0728

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

    CAS:
    Formula:C24H29N5O7S2
    Molecular weight:563.64

    Ref: 4Z-A-2314

    5mg
    To inquire
    10mg
    2,912.00€
    25mg
    5,339.00€
    50mg
    8,858.00€
    100mg
    To inquire
  • Ivermectin B1a-d2

    CAS:
    Formula:C48H72D2O14
    Color and Shape:White To Off-White Solid
    Molecular weight:877.12

    Ref: 4Z-I-077008

    5mg
    To inquire
    10mg
    1,456.00€
    25mg
    2,670.00€
    50mg
    4,368.00€
    100mg
    To inquire
  • Linezolid Impurity 53 HCl

    CAS:
    Formula:C21H24FN3O3·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:385.44 36.46

    Ref: 4Z-L-0771

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Tulathromycin A Impurity 12 Diformate

    CAS:
    Formula:C41H81N3O13·2CH2O2
    Color and Shape:Yellow Solid
    Molecular weight:824.11 2*46.03

    Ref: 4Z-T-153014

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Cefradine Impurity 3 (2-Amino-2-Cyclohex-1-enyl-Propionic Acid Methyl Ester) HCl

    CAS:
    Formula:C10H17NO2·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:183.25 36.46

    Ref: 4Z-C-120006

    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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  • Ceftezole

    CAS:
    Formula:C13H12N8O4S3
    Color and Shape:White To Off-White Solid
    Molecular weight:440.47

    Ref: 4Z-C-185001

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

    CAS:
    <p>Ceftriaxone: cephalosporin antibiotic, effective against Gram-positive/negative bacteria, with anti-inflammatory/antioxidant properties.</p>
    Formula:C18H18N8O7S3
    Purity:96.08%
    Color and Shape:Solid
    Molecular weight:554.58
  • Terbinafine Impurity 12

    CAS:
    Formula:C9H12O
    Color and Shape:Pale Yellow Solid
    Molecular weight:136.19

    Ref: 4Z-T-5412

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Clindamycin Impurity 57 HCl


    Formula:C27H49ClN2O6S·HCl
    Molecular weight:565.21 36.46

    Ref: 4Z-C-50110

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

    CAS:
    Formula:C43H58N4O12
    Color and Shape:Orange Red Solid
    Molecular weight:822.95

    Ref: 4Z-R-234

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • Antibiotics Library


    <p>A unique collection of xnum compounds with antibiotic activity for new antibacterial drug screening;</p>
    Color and Shape:Odour Solid
  • Cefoperazone Sodium Salt

    CAS:
    Formula:C25H26N9O8S2·Na
    Molecular weight:644.66 22.99

    Ref: 4Z-C-784

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

    CAS:
    Formula:C8H9N
    Molecular weight:119.17

    Ref: 4Z-C-296006

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Rifapentine N-Oxide


    Formula:C47H64N4O13
    Color and Shape:Red Solid
    Molecular weight:893.04

    Ref: 4Z-R-090003

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

    CAS:
    Formula:C1613CH14D3ClO6
    Color and Shape:White To Off-White Solid
    Molecular weight:356.78

    Ref: 4Z-G-088

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

    CAS:
    Formula:C18H19N3O5S
    Color and Shape:Off-White Solid
    Molecular weight:389.43

    Ref: 4Z-C-127017

    5mg
    To inquire
    10mg
    2,427.00€
    25mg
    4,368.00€
    50mg
    7,220.00€
    100mg
    To inquire
  • Ceftizoxime Impurity 13 Sodium Salt

    CAS:
    Formula:C7H7N2O4S·Na
    Molecular weight:215.20 22.99

    Ref: 4Z-C-9018

    5mg
    To inquire
    10mg
    1,214.00€
    25mg
    2,184.00€
    50mg
    3,398.00€
    100mg
    To inquire
  • Faropenem-d7 Sodium Salt

    CAS:
    Formula:C12H7D7NO5S·Na
    Molecular weight:291.35 22.99

    Ref: 4Z-F-087049

    5mg
    To inquire
    10mg
    3,640.00€
    25mg
    6,674.00€
    50mg
    10,920.00€
    100mg
    To inquire
  • Ixabepilone Impurity 5 (Epothilone A)

    CAS:
    Formula:C26H39NO6S
    Color and Shape:Off-White Solid
    Molecular weight:493.67

    Ref: 4Z-I-069006

    5mg
    To inquire
    10mg
    To inquire
    25mg
    To inquire
    50mg
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    100mg
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  • Flucloxacillin EP Impurity B (Mixture of Diastereomers)

    CAS:
    Formula:C18H19ClFN3O4S
    Color and Shape:White To Off-White Solid
    Molecular weight:427.88

    Ref: 4Z-F-512

    5mg
    To inquire
    10mg
    508.00€
    25mg
    825.00€
    50mg
    1,153.00€
    100mg
    To inquire
  • Azithromycin EP Impurity I (N-Desmethyl Azithromycin)

    CAS:
    Formula:C37H70N2O12
    Color and Shape:White To Off-White Solid
    Molecular weight:734.97

    Ref: 4Z-A-262

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Posaconazole Piperazine N,N-Dioxide

    CAS:
    Formula:C37H42F2N8O6
    Color and Shape:Off-White Solid
    Molecular weight:732.79

    Ref: 4Z-P-3880

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

    CAS:
    Formula:C39H44N8O10S2
    Molecular weight:848.95

    Ref: 4Z-P-743

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Clindamycin 2-Phosphate Sulfoxide (Mixture of Diastereomers)

    CAS:
    Formula:C18H34ClN2O9PS
    Color and Shape:White To Off-White Solid
    Molecular weight:520.96

    Ref: 4Z-C-5032

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