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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.

Products of "Natural and semi-synthetic antibiotics"

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products per page.Found 5671 products on this category.
  • Rifaximin Impurity 3
    TLC
    + Info

    Rifaximin Impurity 3

    CAS:
    Formula:C43H49N3O11
    Color and Shape:Yellow Solid
    Molecular weight:783.88

    Ref: 4Z-R-3517

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  • Cefixime Impurity 10
    TLC
    + Info

    Cefixime Impurity 10

    Formula:C15H17N5O6S2
    Molecular weight:427.45

    Ref: 4Z-C-9125

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  • Cefamandole Impurity 27-d5
    TLC
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    Cefamandole Impurity 27-d5

    Formula:C16H10D5N5O5S
    Molecular weight:394.42

    Ref: 4Z-C-162036

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  • Cefazedone Impurity 18
    TLC
    + Info

    Cefazedone Impurity 18

    Formula:C10H14N2O6S
    Molecular weight:290.29

    Ref: 4Z-C-108021

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  • Cefiderocol Sulfate Tosylate
    TLC
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    Cefiderocol Sulfate Tosylate

    CAS:
    Formula:C30H35ClN7O10S2·C7H7O3S·O4S)·3C7H8O3S
    Molecular weight:3*753.22. 171.34. 95.95. 3*172.20

    Ref: 4Z-C-385003

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  • Polyfungin B
    TLC
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    Polyfungin B

    CAS:
    Formula:C53H85NO19
    Molecular weight:1040.25

    Ref: 4Z-P-391001

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  • Posaconazole Impurity 84
    TLC
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    Posaconazole Impurity 84

    Formula:C14H16FN3O2
    Molecular weight:277.30

    Ref: 4Z-P-38117

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  • Amoxicillin EP Impurity F (Amoxicillin USP Related Compound F)
    TLC
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    Amoxicillin EP Impurity F (Amoxicillin USP Related Compound F)

    CAS:
    Formula:C10H8N2O2
    Color and Shape:Yellow Solid
    Molecular weight:188.19

    Ref: 4Z-A-237

    5mg
    309.00€
    10mg
    496.00€
    25mg
    709.00€
    50mg
    881.00€
    100mg
    1,288.00€
  • Moxifloxacin EP Impurity C HCl (Moxifloxacin USP Related Compound C HCl)
    TLC
    + Info

    Moxifloxacin EP Impurity C HCl (Moxifloxacin USP Related Compound C HCl)

    CAS:
    Formula:C22H26FN3O4·HCl
    Color and Shape:Pale Yellow Solid
    Molecular weight:415.47 36.46

    Ref: 4Z-M-2711

    5mg
    872.00€
    10mg
    1,491.00€
    25mg
    2,643.00€
    50mg
    4,405.00€
    100mg
    7,319.00€
  • Minocycline EP Impurity B (Sancycline)
    TLC
    + Info

    Minocycline EP Impurity B (Sancycline)

    CAS:
    Formula:C21H22N2O7
    Color and Shape:Off-White Solid
    Molecular weight:414.41

    Ref: 4Z-M-347

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  • N-Nitroso Amoxicillin
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    N-Nitroso Amoxicillin

    Formula:C16H18N4O6S
    Molecular weight:394.40

    Ref: 4Z-A-2341

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  • Erythromycin-d3
    TRC
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    Erythromycin-d3

    Controlled Product
    CAS:
    Applications Isotope labelled Erythromycin (E649950), an antibiotic useful for the treatment of a number of bacterial infection, usually prescribed to patients with allergy to penicillin. References Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979),
    Formula:C37H64D3NO13
    Color and Shape:White
    Molecular weight:736.96

    Ref: TR-E649954

    1mg
    410.00€
    5mg
    1,424.00€
  • Minocycline Impurity 3
    TLC
    + Info

    Minocycline Impurity 3

    Formula:C21H20N2O8
    Molecular weight:428.40

    Ref: 4Z-M-3425

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  • Cefpodoxime Proxetil Impurity 5 (Mixture of Diastereomers)
    TLC
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    Cefpodoxime Proxetil Impurity 5 (Mixture of Diastereomers)

    Formula:C30H37N7O12S3
    Color and Shape:White To Off-White Solid
    Molecular weight:783.84

    Ref: 4Z-C-8517

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  • Cilastatin Impurity 3
    TLC
    + Info

    Cilastatin Impurity 3

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

    Ref: 4Z-C-136014

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  • N-Nitroso Moxifloxacin Impurity 54
    TLC
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    N-Nitroso Moxifloxacin Impurity 54

    Formula:C16H15F3N2O5
    Molecular weight:372.30

    Ref: 4Z-M-27131

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  • Dirithromycin EP Impurity E
    TLC
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    Dirithromycin EP Impurity E

    Formula:C40H74N2O12
    Molecular weight:775.04

    Ref: 4Z-D-106007

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  • Cefotaxime-13C-d3
    TLC
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    Cefotaxime-13C-d3

    CAS:
    Formula:C1513CH14D3N5O7S2
    Molecular weight:459.47

    Ref: 4Z-C-106013

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  • Vancomycin Impurity 2 (Demethyl-Vancomycin B)
    TLC
    + Info

    Vancomycin Impurity 2 (Demethyl-Vancomycin B)

    Formula:C65H73Cl2N9O24
    Molecular weight:1435.24

    Ref: 4Z-V-032023

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  • Potassium Clavulanate EP Impurity G Enantiomer
    TLC
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    Potassium Clavulanate EP Impurity G Enantiomer

    CAS:
    Formula:C13H15NO6
    Color and Shape:White To Off-White Solid
    Molecular weight:281.26

    Ref: 4Z-C-3229

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  • Latamoxef Impurity 63
    TLC
    + Info

    Latamoxef Impurity 63

    Formula:C40H40N12O18S2
    Molecular weight:1040.95

    Ref: 4Z-L-102064

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  • Flomoxef sodium
    Targetmol
    + Info

    Flomoxef sodium

    CAS:
    Flomoxef sodium, an antibiotic belonging to the oxacephem group, exhibits excellent activity against a broad spectrum of Gram-positive bacteria.
    Formula:C15H17F2N6NaO7S2
    Purity:97.88%
    Color and Shape:Solid
    Molecular weight:518.44

    Ref: TM-T11301L

    5mg
    51.00€
    10mg
    84.00€
    25mg
    169.00€
    50mg
    274.00€
    100mg
    378.00€
    200mg
    567.00€
    500mg
    905.00€
  • Avibactam Impurity 58
    TLC
    + Info

    Avibactam Impurity 58

    CAS:
    Formula:C20H29BrN2O5
    Molecular weight:457.37

    Ref: 4Z-A-192059

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  • Cefaclor Impurity 6 (Cefaclor sulfoxide)
    TLC
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    Cefaclor Impurity 6 (Cefaclor sulfoxide)

    Formula:C15H14ClN3O5S
    Molecular weight:383.80

    Ref: 4Z-C-6614

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  • Vancomycin B
    TLC
    + Info

    Vancomycin B

    Formula:C66H75Cl2N9O24
    Molecular weight:1449.27

    Ref: 4Z-V-032021

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  • Milbemectin A3
    TLC
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    Milbemectin A3

    CAS:
    Formula:C31H44O7
    Molecular weight:528.69

    Ref: 4Z-M-195001

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  • Tacrolimus Impurity 6 (Tacrolimus Hydroxy Acid Impurity)
    TLC
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    Tacrolimus Impurity 6 (Tacrolimus Hydroxy Acid Impurity)

    CAS:
    Formula:C44H71NO13
    Molecular weight:822.06

    Ref: 4Z-T-3916

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  • D-Cycloserine-15N-d3
    TLC
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    D-Cycloserine-15N-d3

    CAS:
    Formula:C3H3D3N15NO2
    Molecular weight:106.10

    Ref: 4Z-C-11318

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  • Penicillamine Disulfide
    TLC
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    Penicillamine Disulfide

    Formula:C10H20N2O4S2
    Molecular weight:296.41

    Ref: 4Z-P-898

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  • Latamoxef Impurity 72
    TLC
    + Info

    Latamoxef Impurity 72

    CAS:
    Formula:C22H24O7
    Molecular weight:400.43

    Ref: 4Z-L-102073

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  • Vancomycin Impurity 1
    TLC
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    Vancomycin Impurity 1

    Formula:C65H73Cl2N9O24
    Molecular weight:1435.24

    Ref: 4Z-V-032019

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  • Latamoxef Impurity 26
    TLC
    + Info

    Latamoxef Impurity 26

    Formula:C21H22N6O9S
    Molecular weight:534.50

    Ref: 4Z-L-102027

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  • Cefazedone Lactone
    TLC
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    Cefazedone Lactone

    CAS:
    Formula:C15H11Cl2N3O5S
    Color and Shape:White To Off-White Solid
    Molecular weight:416.23

    Ref: 4Z-C-108016

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  • Aztreonam Impurity 14 HCl
    TLC
    + Info

    Aztreonam Impurity 14 HCl

    Formula:C15H23N5O6S·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:401.44 36.46

    Ref: 4Z-A-108030

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  • Thienamycin (>80%)
    TRC
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    Thienamycin (>80%)

    Controlled Product
    CAS:
    Stability Hygroscopic, Temperature Sensitive, Very Unstable Applications Thienamycin is one of the most potent naturally produced antibiotics known thus far. It has excellent activity against both Gram-positive and Gram-negative bacteria and is resistant to bacterial β-lactamase enzymes. References Kahan, J., et al.: J. Antibiot., 32, 1 (1979); Bradley, J., et al.: Int. J. Antimicrob. Agents, 11, 93 (1999); Spratt, B., et al.: Antimcrob. Agents Chemother., 12, 406 (1977);
    Formula:C11H16N2O4S
    Purity:>80%
    Color and Shape:Neat
    Molecular weight:272.32

    Ref: TR-T344270

    1mg
    450.00€
    10mg
    3,045.00€
  • Erythromycin EP Impurity C (Erythromycin E)
    TLC
    + Info

    Erythromycin EP Impurity C (Erythromycin E)

    CAS:
    Formula:C37H65NO14
    Color and Shape:Off-White Solid
    Molecular weight:747.92

    Ref: 4Z-E-2016

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  • Homoharringtonine Impurity 1
    TLC
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    Homoharringtonine Impurity 1

    CAS:
    Formula:C29H37NO8
    Molecular weight:527.61

    Ref: 4Z-O-027007

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  • N-Desmethyl Tetracycline (N-Desmethyl Oxytetracycline EP Impurity
    TLC
    + Info

    N-Desmethyl Tetracycline (N-Desmethyl Oxytetracycline EP Impurity

    Formula:C21H22N2O8
    Molecular weight:430.41

    Ref: 4Z-T-4032

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  • Posaconazole Impurity 107
    TLC
    + Info

    Posaconazole Impurity 107

    Formula:C60H69F2N13O6
    Molecular weight:1106.29

    Ref: 4Z-P-38140

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  • Virginiamycin M1-d4 (Pristinamycin IIA-d4)
    TLC
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    Virginiamycin M1-d4 (Pristinamycin IIA-d4)

    Formula:C28H31N3O7D4
    Molecular weight:529.63

    Ref: 4Z-V-174

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  • Natamycin Impurity 6
    TLC
    + Info

    Natamycin Impurity 6

    Formula:C33H49NO11
    Molecular weight:635.75

    Ref: 4Z-N-158008

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  • Rifampicin Impurity 5
    TLC
    + Info

    Rifampicin Impurity 5

    Formula:C40H50N4O9
    Molecular weight:730.86

    Ref: 4Z-R-2319

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  • Latamoxef Impurity 61
    TLC
    + Info

    Latamoxef Impurity 61

    Formula:C20H20N6O9S
    Molecular weight:520.47

    Ref: 4Z-L-102062

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  • Tebipenem Pivoxil Impurity 2
    TLC
    + Info

    Tebipenem Pivoxil Impurity 2

    CAS:
    Formula:C22H31N3O6S2
    Molecular weight:497.64

    Ref: 4Z-T-9910

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  • Polymyxin B1 Impurity 9
    TLC
    + Info

    Polymyxin B1 Impurity 9

    Formula:C57H99N15O13
    Molecular weight:1202.51

    Ref: 4Z-PP-321019

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  • Zearalenone Impurity 2
    TLC
    + Info

    Zearalenone Impurity 2

    CAS:
    Formula:C20H25NO7
    Molecular weight:391.42

    Ref: 4Z-Z-169

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  • Cefradine Impurity 9 HCl
    TLC
    + Info

    Cefradine Impurity 9 HCl

    CAS:
    Formula:C8H9NO3·HCl
    Color and Shape:White To Off-White Solid
    Molecular weight:167.16 36.46

    Ref: 4Z-C-120015

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  • Latamoxef Impurity 21
    TLC
    + Info

    Latamoxef Impurity 21

    Formula:C18H19N3O9
    Molecular weight:421.36

    Ref: 4Z-L-102022

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  • Tazobactam Acid Impurity T-1
    TLC
    + Info

    Tazobactam Acid Impurity T-1

    Formula:C20H24N8O10S2
    Molecular weight:600.10

    Ref: 4Z-T-127002

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  • Moxifloxacin Impurity 18
    TLC
    + Info

    Moxifloxacin Impurity 18

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

    Ref: 4Z-M-2713

    5mg
    406.00€
    10mg
    677.00€
    25mg
    1,101.00€
    50mg
    1,813.00€
    100mg
    2,848.00€