
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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Cefotetan Impurity 1 Sodium Salt (Cefmetazole Sodium Salt)
CAS:Formula:C15H16N7O5S3·NaColor and Shape:White To Off-White SolidMolecular weight:470.53 22.99Moxifloxacin Boron Complex Impurity
CAS:Formula:C18H16BF2NO8Color and Shape:White To Off-White SolidMolecular weight:423.13Linezolid N-Oxide
CAS:Formula:C16H20FN3O5Color and Shape:White To Off-White SolidMolecular weight:353.35Cephalexin-d5
CAS:Formula:C16H12D5N3O4SColor and Shape:White To Off-White SolidMolecular weight:352.42Clarithromycin EP Impurity L
CAS:Formula:C38H70N2O13Color and Shape:White To Off-White SolidMolecular weight:762.98Terbinafine Impurity 14 HCl
CAS:Formula:C12H13N·HClColor and Shape:White To Off-White SolidMolecular weight:171.24 36.46Cefpodoxime Proxetil Impurity 5 (Mixture of Diastereomers)
Formula:C30H37N7O12S3Color and Shape:White To Off-White SolidMolecular weight:783.84Cefotaxime EP Impurity F (Cefotaxime Dimer)
CAS:Formula:C30H30N10O12S4Color and Shape:Off-White SolidMolecular weight:850.87δ-2-Avermectin B1a
CAS:Formula:C48H72O14Color and Shape:White To Off-White SolidMolecular weight:873.09Erythromycin EP Impurity J (Pseudoerythromycin A Hemiketal) (1S-Isomer)
CAS:Formula:C37H67NO13Color and Shape:Off-White SolidMolecular weight:733.94Posaconazole Piperazine N,N-Dioxide
CAS:Formula:C37H42F2N8O6Color and Shape:Off-White SolidMolecular weight:732.79Vancomycin EP Impurity K-13C2-d6 Ditrifluoroacetate
Formula:C6513C2H71D6Cl2N9O24·2C2HF3O2Molecular weight:1471.31 2*114.02Bacitracin EP Impurity E Ditrifluoroacetate (Bacitracin F Ditrifluoroacetate)
CAS:Formula:C66H98N16O17S·2C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:1419.67 2*114.02Posaconazole Impurity 46
CAS:Formula:C36H40F2N8O5Color and Shape:White To Off-White SolidMolecular weight:702.76Rifampicin EP Impurity A (Rifampicin Quinone)
CAS:Formula:C43H56N4O12Color and Shape:Dark Purple SolidMolecular weight:820.94Terbinafine-d7 HCl
CAS:Formula:C21H18D7N·HClColor and Shape:White To Off-White SolidMolecular weight:298.48 36.46Erythromycin-13C-d3
CAS:Formula:C3613CH64D3NO13Color and Shape:White To Off-White SolidMolecular weight:737.95Tiamulin EP Impurity N
Formula:C26H36O8Color and Shape:White To Off-White SolidMolecular weight:476.57Lovastatin EP Impurity B Sodium Salt (Lovastatin Hydroxy Acid Sodium Salt)
CAS:Formula:C24H37O6·NaColor and Shape:White To Off-White SolidMolecular weight:421.55 22.99Azithromycin EP Impurity A (Azathramycin, Desmethyl Azithromycin)
CAS:Formula:C37H70N2O12Color and Shape:White To Off-White SolidMolecular weight:734.97Potassium Clavulanate EP Impurity A
CAS:Formula:C8H12N2O2Color and Shape:Off-White SolidMolecular weight:168.20Posaconazole Impurity 57
CAS:Formula:C39H44F2N8O5Color and Shape:White To Off-White SolidMolecular weight:742.83Cefepime EP Impurity A DiHCl
CAS:Formula:C19H24N6O5S2·2HClColor and Shape:Off-White SolidMolecular weight:480.57 2*36.46Tedizolid Impurity 6
CAS:Formula:C17H16FN6O6PColor and Shape:Pale Yellow SolidMolecular weight:450.32Cefprozil EP Impurity N
CAS:Formula:C21H23N3O7SColor and Shape:Pale Yellow SolidMolecular weight:461.49Gentamicin Sulfate EP Impurity E (2-Deoxystreptamine)
CAS:Formula:C6H14N2O3Color and Shape:White To Off-White SolidMolecular weight:162.19Cefdinir-13C-15N2
CAS:Formula:C1313CH13N315N2O5S2Color and Shape:Pale Yellow SolidMolecular weight:398.39Amoxicillin EP Impurity J Disodium Salt (Amoxicillin USP Related Compound J Disodium Salt, Amoxicillin Dimer Impurity Disodium Salt) (Mixture of Diastereomers)
CAS:Formula:C32H38N6O10S2·2NaMolecular weight:728.79 2*22.99Mitomycin Related Compound 3 Trifluoroacetate
CAS:Formula:C14H16N4O5·C2HF3O2Molecular weight:320.30 114.02Cycloserine Impurity 3 HCl
CAS:Formula:C4H8ClNO2·HClColor and Shape:White To Off-White SolidMolecular weight:137.57 36.46Cefpodoxime Proxetil Impurity 6 (Mixture of Diastereomers)
CAS:Formula:C20H25N5O9S2Molecular weight:543.57Ampicillin Impurity 8
Formula:C24H29N5O6S2Color and Shape:White To Off-White SolidMolecular weight:547.65Lincomycin HCl (Clindamycin Phosphate EP Impurity A HCl)
CAS:Formula:C18H34N2O6S·HClMolecular weight:406.54 36.46rac-Linezolid Impurity 80
Formula:C15H22FN3O3Color and Shape:Pale Yellow SolidMolecular weight:311.36Sulfociprofloxacin Sodium Salt
CAS:Formula:C17H17FN3O6S·NaColor and Shape:Pale Yellow SolidMolecular weight:410.40 22.99Cefadroxil Impurity 4 (Mixture of Diastereomers)
Formula:C24H24N4O7SColor and Shape:White To Off-White SolidMolecular weight:512.54Amoxicillin EP Impurity G (Amoxicillin USP Related Compound G)
CAS:Formula:C24H26N4O7SColor and Shape:White To Off-White SolidMolecular weight:514.55Piperacillin EP Impurity S Sodium Salt (Piperacillin Penicillamide Sodium Salt)
Formula:C31H36N7O9S2·NaMolecular weight:714.80 22.99Clarithromycin N-Oxide
CAS:Formula:C38H69NO14Color and Shape:White To Off-White SolidMolecular weight:763.96Sulbactam Impurity 2 Sodium Salt (Penicillanic Acid Sodium Salt)
CAS:Formula:C8H10NO3S·NaColor and Shape:White To Off-White SolidMolecular weight:200.24 22.99Ampicillin EP Impurity G
CAS:Formula:C16H14N2O2Color and Shape:White To Off-White SolidMolecular weight:266.30Tacrolimus EP Impurity I (Tacrolimus Diene)
CAS:Formula:C44H67NO11Color and Shape:White To Off-White SolidMolecular weight:786.02Moxifloxacin EP Impurity H (Moxifloxacin Methyl Ester)
CAS:Formula:C22H26FN3O4Color and Shape:White To Off-White SolidMolecular weight:415.47N-Methyl Gatifloxacin HCl
CAS:Formula:C20H24FN3O4·HClColor and Shape:Pale Yellow SolidMolecular weight:389.43 36.46Tobramycin Impurity 5
Formula:C23H36N2O7Color and Shape:White To Off-White SolidMolecular weight:452.55Di-Methylated Fidaxomicin
CAS:Formula:C54H78Cl2O18Color and Shape:White To Off-White SolidMolecular weight:1086.10Cefazolin Impurity 10
CAS:Formula:C3H4N4O2Color and Shape:White To Off-White SolidMolecular weight:128.09Linezolid-d3
CAS:Formula:C16H17D3FN3O4Color and Shape:White To Off-White SolidMolecular weight:340.37Gatifloxacin Impurity 4
CAS:Formula:C20H23F2N3O3Color and Shape:White To Off-White SolidMolecular weight:391.42N-Nitroso Desmethyl Minocycline 2 Trifluoroacetate
Formula:C22H24N4O8·C2HF3O2Molecular weight:472.45 114.02Dicloxacillin Sodium Salt
CAS:Formula:C19H16Cl2N3O5S·NaColor and Shape:White To Off-White SolidMolecular weight:469.31 22.99Ascomycin (Tacrolimus EP Impurity A)
CAS:Formula:C43H69NO12Color and Shape:White To Off-White SolidMolecular weight:792.02Desbutyl Lumefantrine-d9 (Mixture of Z and E Isomers)
CAS:Formula:C26H15D9Cl3NOMolecular weight:481.89Moxifloxacin Acyl Glucuronide
CAS:Formula:C27H32FN3O10Color and Shape:Off-White SolidMolecular weight:577.56Cefixime EP Impurity D
CAS:Formula:C16H15N5O7S2Color and Shape:White To Off-White SolidMolecular weight:453.44Clavulanic Acid Impurity 7 DiHCl
CAS:Formula:C6H16N2·2HClColor and Shape:White To Off-White SolidMolecular weight:116.21 2*36.46Amikacin EP Impurity D
CAS:Formula:C18H36N4O11Color and Shape:White To Off-White SolidMolecular weight:484.50Cefmetazole Impurity 7 (Mixture of Isomers)
CAS:Formula:C24H22N6O3S3Color and Shape:Yellow SolidMolecular weight:538.66Spinosad (Mixture of Spinosyn A and Spinosyn D)
CAS:Formula:C41H65NO10·C42H67NO10Color and Shape:White To Off-White SolidMolecular weight:731.97 746.00Amikacin EP Impurity I
CAS:Formula:C4H9NO3Color and Shape:White To Off-White SolidMolecular weight:119.12Defluoro Linezolid
CAS:Formula:C16H21N3O4Color and Shape:White To Off-White SolidMolecular weight:319.36Sulbactam Pivoxil
CAS:Formula:C14H21NO7SColor and Shape:White To Off-White SolidMolecular weight:347.38Cefdinir Impurity 2 (Thiazolylacetylglycine Oxime)
CAS:Formula:C7H8N4O4SColor and Shape:Off-White SolidMolecular weight:244.23Piperacillin Methyl Ester
CAS:Formula:C24H29N5O7SColor and Shape:White To Off-White SolidMolecular weight:531.58Cefazolin Impurity 11
CAS:Formula:C7H13N5O3Color and Shape:White To Off-White SolidMolecular weight:215.21Aztreonam Impurity 8
Formula:C13H17N5O8S2Color and Shape:White To Off-White SolidMolecular weight:435.43Lincomycin-13C-d3 (Clindamycin Phosphate EP Impurity A-13C-d3)
CAS:Formula:C1713CH31D3N2O6SMolecular weight:410.55Cefazedone Impurity 5
CAS:Formula:C15H13Cl2N3O6SColor and Shape:White To Off-White SolidMolecular weight:434.24
