
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 6341 products of "Natural and semi-synthetic antibiotics"
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Tazobactam Acid Impurity 13
CAS:Formula:C23H22N4O5SColor and Shape:White To Off-White SolidMolecular weight:466.51Aztreonam Impurity 14 HCl
Formula:C15H23N5O6S·HClColor and Shape:White To Off-White SolidMolecular weight:401.44 36.46Ivermectin EP Impurity C (Avermectin B2a)
CAS:Formula:C48H74O15Color and Shape:White To Off-White SolidMolecular weight:891.11Ceftazidime Impurity 1
CAS:Formula:C13H19N3O5SColor and Shape:White To Off-White SolidMolecular weight:329.37Erythromycin A (6,9-Imino Ether)
CAS:Formula:C37H66N2O12Color and Shape:White To Off-White SolidMolecular weight:730.94Formyl L-Penicillamine
CAS:Formula:C6H11NO3SColor and Shape:White To Off-White SolidMolecular weight:177.22N-Nitroso Caspofungin Ditrifluoroacetate
Formula:C52H87N11O16·2C2HF3O2Molecular weight:1122.33 2*114.02Cefalotin EP Impurity A
CAS:Formula:C14H14N2O4S2Color and Shape:Off-White SolidMolecular weight:338.40Gatifloxacin Impurity 3 HCl (Desethylene Gatifloxacin HCl)
CAS:Formula:C17H20FN3O4·HClColor and Shape:Off-White SolidMolecular weight:349.37 36.46Moxifloxacin Impurity 17
CAS:Formula:C15H12F3NO3Color and Shape:White To Off-White SolidMolecular weight:311.26Thiamphenicol Amine HCl
CAS:Formula:C10H15NO4S·HClColor and Shape:White To Off-White SolidMolecular weight:245.30 36.46Cefazedone Impurity 6
CAS:Formula:C17H15Cl2N3O7SColor and Shape:White To Off-White SolidMolecular weight:476.28Lincomycin 3,4-Phosphate
Formula:C18H33N2O8PSColor and Shape:White To Off-White SolidMolecular weight:468.50Ertapenem Impurity Pro-maba
CAS:Formula:C12H14N2O3Color and Shape:White To Off-White SolidMolecular weight:234.26Moxifloxacin Impurity 18
CAS:Formula:C14H13FN2O4Color and Shape:Off-White SolidMolecular weight:292.27Clindamycin Impurity 30
CAS:Formula:C18H35N2O9PSColor and Shape:White To Off-White SolidMolecular weight:486.52Cefazolin EP Impurity H (Cefalotin EP Impurity C, Cefoperazone EP Impurity E, 7-Aminocephalosporanic Acid)
CAS:Formula:C10H12N2O5SColor and Shape:White To Off-White SolidMolecular weight:272.28Cefmetazole Impurity 47
Formula:C15H17N7O5S3Color and Shape:White To Off-White SolidMolecular weight:471.53Aztreonam USP Related Compound E ((E)-Aztreonam)
CAS:Formula:C13H17N5O8S2Color and Shape:White To Off-White SolidMolecular weight:435.43Desbutyl Lumefantrine HCl
CAS:Formula:C26H24Cl3NO·HClColor and Shape:Yellow SolidMolecular weight:472.83 36.46Moxifloxacin EP Impurity G-d4 HCl (ent-Moxifloxacin-d4 HCl)
CAS:Formula:C21H20D4FN3O4·HClColor and Shape:Yellow SolidMolecular weight:405.46 36.46Benzylposaconazole Enantiomer
Formula:C44H48F2N8O4Color and Shape:White To Off-White SolidMolecular weight:790.92Posaconazole Diastereoisomer 5 (S,R,R,S)
CAS:Formula:C37H42F2N8O4Color and Shape:White To Off-White SolidMolecular weight:700.80Azithromycin EP Impurity F (Azithromycin USP Related Compound F)
CAS:Formula:C38H70N2O13Color and Shape:White To Off-White SolidMolecular weight:762.98Ceftolozane Impurity 1
Formula:C12H19N5O4SColor and Shape:White To Off-White SolidMolecular weight:329.38Faropenem Sodium Salt
CAS:Formula:C12H14NO5S·NaColor and Shape:White To Off-White SolidMolecular weight:284.31 22.99Sparfloxacin Impurity 4 Sodium Salt
CAS:Formula:C19H23F2N4O3·NaColor and Shape:Yellow SolidMolecular weight:393.42 22.99Clarithromycin EP Impurity K
CAS:Formula:C30H51NO8Color and Shape:White To Off-White SolidMolecular weight:553.74Polymyxin B6 Pentatrifluoroacetate (Mixture of Diastereomers)
CAS:Formula:C56H98N16O14·5C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:1219.50 5*114.02Cefotiam DiHCl
CAS:Formula:C18H23N9O4S3·2HClColor and Shape:Off-White SolidMolecular weight:525.63 2*36.46Benzylposaconazole
CAS:Formula:C44H48F2N8O4Color and Shape:White To Off-White SolidMolecular weight:790.92Clarithromycin EP Impurity N
CAS:Formula:C38H67NO12Color and Shape:White To Off-White SolidMolecular weight:729.95Cefixime EP Impurity B (Mixture of Diastereomers)
Formula:C15H17N5O6S2Color and Shape:Pale Yellow SolidMolecular weight:427.45Cefprozil Impurity 4
Formula:C17H19N3O6SColor and Shape:White To Off-White SolidMolecular weight:393.41N-Desmethyl Dirithromycin
CAS:Formula:C41H76N2O14Color and Shape:White To Off-White SolidMolecular weight:821.06Griseofulvin-d3
CAS:Formula:C17H14D3ClO6Color and Shape:White To Off-White SolidMolecular weight:355.79Omacetaxine Mepesuccinate (Homoharringtonine)
CAS:Formula:C29H39NO9Color and Shape:White To Off-White SolidMolecular weight:545.63Oxytetracycline EP Impurity F HCl (Anhydro-Oxytetracycline HCl, Dehydrotetracycline HCl)
CAS:Formula:C22H22N2O8·HClMolecular weight:442.43 36.46Cefathiamidine Impurity 1
CAS:Formula:C12H13BrN2O6SColor and Shape:White To Off-White SolidMolecular weight:393.22Rolitetracycline Trifluoroacetate
CAS:Formula:C27H33N3O8·C2HF3O2Color and Shape:Yellow SolidMolecular weight:527.57 114.02Cloxacillin Sodium Salt
CAS:Formula:C19H17ClN3O5S·NaColor and Shape:White To Off-White SolidMolecular weight:434.88 22.99Clindamycin Impurity 9
CAS:Formula:C37H67ClN2O6SColor and Shape:Pale Yellow OilMolecular weight:703.463-Hydroxy Azithromycinoic Acid
CAS:Formula:C30H60N2O10Color and Shape:White To Off-White SolidMolecular weight:608.81Terbinafine Impurity 14 HCl
CAS:Formula:C12H13N·HClColor and Shape:White To Off-White SolidMolecular weight:171.24 36.46Cefodizime Impurity (2-Mercapto-4-methyl-5-thiazoleacetic acid)
CAS:Formula:C6H7NO2S2Molecular weight:189.26Cefixime EP Impurity E
CAS:Formula:C15H15N5O7S2Color and Shape:White To Off-White SolidMolecular weight:441.43Terbinafine-d7 HCl
CAS:Formula:C21H18D7N·HClColor and Shape:White To Off-White SolidMolecular weight:298.48 36.46Cefradine EP Impurity E Trifluoroacetate
CAS:Formula:C16H17N3O5S·C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:363.39 114.02Amoxicillin Impurity 16 Disodium Salt (Mixture of Diastereomers)
Formula:C24H29N5O8S2·2NaMolecular weight:579.64 2*22.99Clarithromycin Impurity 14 (Mixture of Z and E Isomers)
Formula:C49H94N2O13Si2Molecular weight:975.46Penicillamine Impurity 1
CAS:Formula:C10H20N2O4S3Color and Shape:White To Off-White SolidMolecular weight:328.46Micafungin Metabolite M1
CAS:Formula:C56H71N9O20Color and Shape:White To Off-White SolidMolecular weight:1190.23Cefpodoxime Proxetil Impurity 4 (Mixture of Diastereomers)
Formula:C23H29N5O11S2Color and Shape:White To Off-White SolidMolecular weight:615.63Amoxicillin Impurity 6 Trifluoroacetate
Formula:C16H19N3O6S·C2HF3O2Color and Shape:Yellow SolidMolecular weight:381.40 114.02Posaconazole Diastereoisomer 2 (R,S,R,R)
CAS:Formula:C37H42F2N8O4Color and Shape:White To Off-White SolidMolecular weight:700.80Tedizolid Impurity 22
CAS:Formula:C16H14FN6O6PColor and Shape:Pale Yellow SolidMolecular weight:436.30Neomycin B Trisulfate (Framycetin Trisulfate)
CAS:Formula:C23H46N6O13·3H2SO4Color and Shape:Off-White SolidMolecular weight:614.65 3*98.08Ascomycin (Tacrolimus EP Impurity A)
CAS:Formula:C43H69NO12Color and Shape:White To Off-White SolidMolecular weight:792.02Posaconazole Impurity 55
CAS:Formula:C37H40F2N8O6Color and Shape:White To Off-White SolidMolecular weight:730.77Polymyxin B1-d7 Pentatrifluoroacetate
Formula:C56H91D7N16O13·5C2HF3O2Molecular weight:1210.54 5*114.02Cephalosporin Impurity 7
CAS:Formula:C24H22Cl2N2O5SColor and Shape:Off-White SolidMolecular weight:521.41Linezolid Impurity 28
CAS:Formula:C10H13FN2OColor and Shape:Purplish Red SolidMolecular weight:196.23(4S,7R)-Moxifloxacin Impurity 83 DiHCl
CAS:Formula:C7H14N2·2HClColor and Shape:White To Off-White SolidMolecular weight:126.20 2*36.46Clindamycin Phosphate EP Impurity B (Clindamycin B 2-Phosphate)
CAS:Formula:C17H32ClN2O8PSMolecular weight:490.93Cefminox Sodium Salt
CAS:Formula:C16H20N7O7S3·NaColor and Shape:Off-White SolidMolecular weight:518.57 22.99Terbinafine EP Impurity C (Terbinafine USP Related Compound C (Free Form))
CAS:Formula:C21H25NColor and Shape:White To Off-White SolidMolecular weight:291.44D-Penicillamine-d3
CAS:Formula:C5H8D3NO2SColor and Shape:White To Off-White SolidMolecular weight:152.23Posaconazole Impurity 43
CAS:Formula:C32H32F2N8O3Color and Shape:Off-White SolidMolecular weight:614.66
