
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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Thiamphenicol Amine HCl
CAS:Formula:C10H15NO4S·HClColor and Shape:White To Off-White SolidMolecular weight:245.30 36.46Amoxicillin EP Impurity G (Amoxicillin USP Related Compound G)
CAS:Formula:C24H26N4O7SColor and Shape:White To Off-White SolidMolecular weight:514.55Tiamulin EP Impurity K (Mutilin 11-Acetate)
CAS:Formula:C22H34O4Color and Shape:White To Off-White SolidMolecular weight:362.51Piperacillin EP Impurity A (Ampicillin, Sultamicillin EP Impurity C)
CAS:Formula:C16H19N3O4SColor and Shape:White To Off-White SolidMolecular weight:349.41Patupilone (Epothilone B)
CAS:Formula:C27H41NO6SColor and Shape:White To Off-White SolidMolecular weight:507.69Amikacin Impurity 2 TetraHCl (1,3''-Di-HABA Kanamycin A TetraHCl)
CAS:Formula:C26H50N6O15·4HClColor and Shape:White To Off-White SolidMolecular weight:686.71 4*36.46Cefadroxil EP Impurity F (Mixture of Diastereomers)
Formula:C24H24N4O7SColor and Shape:White To Off-White SolidMolecular weight:512.54Phenoxymethylpenicillin EP Impurity F
CAS:Formula:C15H20N2O4SColor and Shape:White To Off-White SolidMolecular weight:324.40Neomycin EP Impurity C (Neomycin C)
CAS:Formula:C23H46N6O13Color and Shape:Off-White SolidMolecular weight:614.65Piperacillin EP Impurity M Disodium Salt
CAS:Formula:C23H27N5O8S·2NaColor and Shape:White To Off-White SolidMolecular weight:533.56 2*22.99Amoxicillin Impurity 1
CAS:Formula:C8H10N2O2Color and Shape:White To Off-White SolidMolecular weight:166.18Clindamycin EP Impurity C (7-epi Clindamycin)
CAS:Formula:C18H33ClN2O5SColor and Shape:Yellow SolidMolecular weight:424.98Aztreonam Impurity 16
CAS:Formula:C4H8N2O4SColor and Shape:White To Off-White SolidMolecular weight:180.18Ceftriaxone Impurity 17
CAS:Formula:C5H7N3O2SColor and Shape:White To Off-White SolidMolecular weight:173.19Moxidectin EP Impurity I
Formula:C38H56O8SColor and Shape:White To Off-White SolidMolecular weight:672.92Posaconazole Impurity 108
Formula:C24H26F2N6O3Color and Shape:Pale Yellow SolidMolecular weight:484.517-Iodo Sancycline Trifluoroacetate
CAS:Formula:C21H21IN2O7·C2HF3O2Color and Shape:Yellow SolidMolecular weight:540.31 114.02Ticarcillin Sodium EP Impurity E (Mixture of Diastereomers)
CAS:Formula:C14H18N2O5S2Color and Shape:White To Off-White SolidMolecular weight:358.43Azithromycin EP Impurity N
CAS:Formula:C36H65NO13Color and Shape:Pale Green SolidMolecular weight:719.91Erythromycin A 9-Methoxime
CAS:Formula:C38H70N2O13Color and Shape:Off-White SolidMolecular weight:762.98Posaconazole Impurity 7
CAS:Formula:C29H37N5O3Color and Shape:White To Off-White SolidMolecular weight:503.65Aztreonam USP Related Compound B Monosodium Salt (Open-ring Desulfated Aztreonam Monosodium Salt)
CAS:Formula:C13H18N5O6S·NaColor and Shape:White To Off-White SolidMolecular weight:372.38 22.99Tilmicosin-d3
CAS:Formula:C46H77D3N2O13Color and Shape:White To Off-White SolidMolecular weight:872.17N-Nitroso-N-Desmethyl Tetracycline (N-Nitroso-N-Desmethyl Oxytetracycline EP Impurity B)
Formula:C21H21N3O9Molecular weight:459.41Cefoxitin EP Impurity C (Cefalonium Impurity C)
CAS:Formula:C14H12N2O4S2Color and Shape:White To Off-White SolidMolecular weight:336.39Clarithromycin EP Impurity D (N-Desmethyl Clarithromycin)
CAS:Formula:C37H67NO13Color and Shape:White To Off-White SolidMolecular weight:733.94Lomefloxacin Impurity 9
CAS:Formula:C16H16FN3O4Color and Shape:White To Off-White SolidMolecular weight:333.32Erythromycin EP Impurity L
CAS:Formula:C37H65NO14Color and Shape:White To Off-White SolidMolecular weight:747.92Lomefloxacin Impurity 3
CAS:Formula:C16H19F2N3OColor and Shape:White To Off-White SolidMolecular weight:307.34Dicloxacillin Sodium EP Impurity A HCl (Mixture of Diastereomers)
Formula:C19H19Cl2N3O6S·HClColor and Shape:White To Off-White SolidMolecular weight:488.34 36.46Tulathromycin A
CAS:Formula:C41H79N3O12Color and Shape:White To Off-White SolidMolecular weight:806.10Piperacillin-d5 (N-ethyl-d5)
CAS:Formula:C23H22D5N5O7SColor and Shape:White To Off-White SolidMolecular weight:522.59Clindamycin Laurate HCl
CAS:Formula:C30H55ClN2O6S·HClColor and Shape:White To Off-White SolidMolecular weight:607.29 36.46Roxithromycin EP Impurity D
CAS:Formula:C41H76N2O15Color and Shape:White To Off-White SolidMolecular weight:837.06Polymyxin B1-I Pentatrifluoroacetate
CAS:Formula:C56H98N16O13·5C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:1203.50 5*114.02Oxytetracycline EP Impurity F HCl (Anhydro-Oxytetracycline HCl, Dehydrotetracycline HCl)
CAS:Formula:C22H22N2O8·HClMolecular weight:442.43 36.46Linezolid Impurity 23 HCl
CAS:Formula:C5H10ClNO2·HClColor and Shape:White To Off-White SolidMolecular weight:151.59 36.46Posaconazole Impurity 1
CAS:Formula:C36H40F2N8O4Color and Shape:White To Off-White SolidMolecular weight:686.76Cefadroxil EP Impurity D (Cefadroxil USP Related Compound D)
CAS:Formula:C16H17N3O5SColor and Shape:Off-White SolidMolecular weight:363.39Posaconazole Diastereoisomer 3 (S,R,R,R)
CAS:Formula:C37H42F2N8O4Color and Shape:White To Off-White SolidMolecular weight:700.80Besifloxacin Impurity A HCl
CAS:Formula:C19H21ClFN3O3·HClColor and Shape:Yellow SolidMolecular weight:393.85 36.46Cloxacillin EP Impurity D (Cloxacillin USP Related Compound D)
CAS:Formula:C11H8ClNO3Color and Shape:Pale Yellow SolidMolecular weight:237.64Cilastatin EP Impurity A HCl (Mixture of Diastereomers)
Formula:C16H26N2O6S·HClColor and Shape:White To Off-White SolidMolecular weight:374.45 36.46(4R,7S)-Moxifloxacin Impurity 83 DiHCl
CAS:Formula:C7H14N2·2HClColor and Shape:Yellow SolidMolecular weight:126.20 2*36.46Doripenem 4R Isomer Impurity
CAS:Formula:C20H28N4O9S2Color and Shape:White To Off-White SolidMolecular weight:532.58N-Nitroso Terbinafine EP Impurity A (N-Nitroso Terbinafine USP Related Compound A (Free Form))
CAS:Formula:C12H12N2OMolecular weight:200.24Tedizolid Impurity 11 Ditetrabutylammonium Salt
Formula:C17H15FN6O9P2·2C16H36NMolecular weight:528.29 2*242.47Cefaclor Impurity 4 Ditrifluoroacetate
Formula:C22H22N4O4S·2C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:438.51 2*114.028a-Oxo Avermectin B1a
CAS:Formula:C48H70O15Color and Shape:White To Off-White SolidMolecular weight:887.07Tiamulin Fumarate
Formula:C28H47NO4S·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:493.76 116.07Moxifloxacin Impurity 9
CAS:Formula:C16H15F2NO4Color and Shape:Off-White SolidMolecular weight:323.30Tiamulin EP Impurity H Trifluoroacetate (Mixture of Diastereomers)
Formula:C32H51NO9S·C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:625.82 114.02Amoxicillin EP Impurity D Sodium Salt (Mixture of Diastereomers)
CAS:Formula:C16H20N3O6S·NaMolecular weight:382.41 22.99Bacitracin EP Impurity H Ditrifluoroacetate
CAS:Formula:C65H96N16O17S·2C2HF3O2Molecular weight:1405.64 2*114.02Gatifloxacin Impurity 3 HCl (Desethylene Gatifloxacin HCl)
CAS:Formula:C17H20FN3O4·HClColor and Shape:Off-White SolidMolecular weight:349.37 36.46Benzylposaconazole Enantiomer
Formula:C44H48F2N8O4Color and Shape:White To Off-White SolidMolecular weight:790.92Clavulanic Acid Impurity 6 DiHCl
CAS:Formula:C6H16N2O·2HClColor and Shape:White To Off-White SolidMolecular weight:132.21 2*36.46
