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 6335 products of "Natural and semi-synthetic antibiotics"
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Clindamycin Phosphate EP Impurity F
CAS:Formula:C18H35N2O9PSColor and Shape:White To Off-White SolidMolecular weight:486.52Aztreonam Impurity 3
Formula:C19H31N9O10S2Color and Shape:White To Off-White SolidMolecular weight:609.63Spiramycin EP Impurity H Ditrifluoroacetate
CAS:Formula:C39H66N2O12·2C2HF3O2Molecular weight:754.96 2*114.02Cefpodoxime Proxetil Impurity 11 (Mixture of Diastereomers)
Formula:C21H27N5O10S2Color and Shape:Off-White SolidMolecular weight:573.59Posaconazole Impurity 11 (POS-B)
Formula:C60H69F2N13O7Color and Shape:Off-White SolidMolecular weight:1122.29Erythromycylamine-13C-d3 (Dirithromycin EP Impurity A-13C-d3)
CAS:Formula:CC36H67D3N2O12Color and Shape:White To Off-White SolidMolecular weight:738.98Ceftazidime Impurity 8 Trifluoroacetate
Formula:C9H12N4O4S·C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:272.28 114.02Moxifloxacin-d4 HCl
CAS:Formula:C21H20D4FN3O4·HClColor and Shape:Yellow SolidMolecular weight:405.46 36.46Sulbactam Pivoxil
CAS:Formula:C14H21NO7SColor and Shape:White To Off-White SolidMolecular weight:347.38Gentamicin Sulfate EP Impurity E DiHBr (2-Deoxystreptamine DiHBr)
CAS:Formula:C6H14N2O3·2HBrColor and Shape:White To Off-White SolidMolecular weight:162.19 2*80.91Nafcillin
CAS:<p>Nafcillin sodium, a penicillin antibiotic, treats Gram-positive, penicillin-resistant staph infections.</p>Formula:C21H22N2O5SPurity:98%Color and Shape:SolidMolecular weight:414.47Cefepime Impurity 9
Formula:C8H10N4O3S·C8H12N4O4SColor and Shape:Pale Yellow SolidMolecular weight:242.25 260.27Chlortetracycline
CAS:<p>Chlortetracycline, a broad-spectrum antibiotic, halts protein synthesis in Gram-positive/negative bacteria.</p>Formula:C22H23ClN2O8Purity:98%Color and Shape:Golden Yellow Crystal PowderMolecular weight:478.88(E)-Cefetamet Pivoxil
CAS:Formula:C20H25N5O7S2Color and Shape:Pale Yellow To Brown SolidMolecular weight:511.57Cefazolin Impurity 11
CAS:Formula:C7H13N5O3Color and Shape:White To Off-White SolidMolecular weight:215.21Demeclocycline EP Impurity G
CAS:Formula:C21H19ClN2O7Color and Shape:Orange SolidMolecular weight:446.84Cefotaxime Bromoacetyl Analog
CAS:Formula:C15H16BrN3O8SColor and Shape:White To Off-White SolidMolecular weight:478.27Ampicillin EP Impurity I
CAS:Formula:C24H26N4O5SColor and Shape:White To Off-White SolidMolecular weight:482.56Avermectin B1a (Ivermectin EP Impurity A, Abamectin B1a)
CAS:Formula:C48H72O14Color and Shape:White To Off-White SolidMolecular weight:873.09N-Nitroso Vancomycin Trifluoroacetate
CAS:Formula:C66H74Cl2N10O25·C2HF3O2Molecular weight:1478.26 114.02Lumefantrine-d9 (Benflumetol-d9)
CAS:Formula:C30H23D9Cl3NOColor and Shape:Pale Yellow SolidMolecular weight:538.00Dihydrostreptomycin Sulfate
CAS:Formula:C21H41N7O12·3H2O4SColor and Shape:White To Off-White SolidMolecular weight:2 583.60 3 98.08N-Demethyl Erythromycin EP Impurity E (N-Demethyl-Erythromycin A Enol Ether)
CAS:Formula:C36H63NO12Molecular weight:701.90Cefditoren Impurity 16
CAS:Formula:C33H36N6O8S3Color and Shape:Pale Yellow SolidMolecular weight:740.87Moxifloxacin Impurity 83 DiHCl
CAS:Formula:C7H14N2·2HClColor and Shape:White To Off-White SolidMolecular weight:126.20 2*36.46Mepartricin
CAS:<p>Mepartricin, a polyene macrolide, exhibits both antifungal and antiprotozoal activities and is extensively utilized in studies related to benign prostatic hyperplasia.</p>Color and Shape:SolidAztreonam Impurity 4 Tetrasodium Salt
CAS:Formula:C26H30N10O16S4·4NaColor and Shape:Pale Yellow SolidMolecular weight:866.84 4*22.99Roxithromycin EP Impurity F
CAS:Formula:C40H74N2O15Color and Shape:White To Off-White SolidMolecular weight:823.03Micafungin Impurity FR-179642
CAS:Formula:C35H52N8O20SColor and Shape:White To Off-White SolidMolecular weight:936.90Ampicillin-d5
CAS:Formula:C16H14D5N3O4SColor and Shape:White To Off-White SolidMolecular weight:354.44Micafungin Impurity 3
CAS:Formula:C21H21NO4Color and Shape:White To Off-White SolidMolecular weight:351.40Cephalosporin Impurity 5
CAS:Formula:C24H24N2O5SColor and Shape:White To Off-White SolidMolecular weight:452.53Ceftizoxime Impurity 17 (Ceftizoxime S-Oxide)
CAS:Formula:C13H13N5O6S2Color and Shape:Pale Brown SolidMolecular weight:399.41Lumefantrine Impurity 10 (Mixture of Z and E Isomers)
CAS:Formula:C30H32Cl3NOColor and Shape:Yellow SolidMolecular weight:528.94Cefoperazone EP Impurity C (Cefamandole EP Impurity D)
CAS:Formula:C2H4N4SColor and Shape:White To Off-White SolidMolecular weight:116.14Moxifloxacin Impurity 41
CAS:Formula:C24H28FN3O6Color and Shape:Off-White SolidMolecular weight:473.50Bacitracin
CAS:<p>Bacitracin (Ziba-RX), a mixture of related cyclic polypeptides, disrupts bacteria by interfering with cell wall and peptidoglycan synthesis.</p>Formula:C66H103N17O16SPurity:60IU/mg - ≥98%Color and Shape:White To Almost White PowderMolecular weight:1422.73Flomoxef
CAS:<p>Flomoxef is an antibiotic in oxacephem group and has excellent activity against various gram-positive bacteria.</p>Formula:C15H18F2N6O7S2Purity:98%Color and Shape:SolidMolecular weight:496.47Sulbactam EP Impurity C
CAS:Formula:C8H10BrNO5SColor and Shape:White To Off-White SolidMolecular weight:312.13Cephalexin Impurity 1 HCl (D-Phenylglycine Methyl Ester HCl)
CAS:Formula:C9H11NO2·HClColor and Shape:White To Off-White SolidMolecular weight:165.19 36.46Cefpodoxime Proxetil Impurity 4 (Mixture of Diastereomers)
Formula:C23H29N5O11S2Color and Shape:White To Off-White SolidMolecular weight:615.63Tedizolid Impurity 30
CAS:Formula:C16H13FN6O3Color and Shape:Pale Yellow SolidMolecular weight:356.326-Methoxy Moxifloxacin
Formula:C21H25N3O4Color and Shape:White To Off-White SolidMolecular weight:383.45Azithromycin Impurity 3
CAS:Formula:C38H74N2O13Color and Shape:White To Off-White SolidMolecular weight:767.01Terbinafine EP Impurity F HCl
CAS:Formula:C21H25N·HClColor and Shape:Brown SolidMolecular weight:291.44 36.46Penethacillin Hydroiodide (Penethamate Hydroiodide)
CAS:Formula:C22H31N3O4SHIColor and Shape:White To Off-White SolidMolecular weight:433.57 127.91Ceftiofur HCl
CAS:Formula:C19H17N5O7S3·HClColor and Shape:White To Off-White SolidMolecular weight:523.55 36.46Flucloxacillin
CAS:<p>Flucloxacillin, an antibiotic, effectively combats both gram-positive and gram-negative bacteria [1] [2].</p>Formula:C19H17ClFN3O5SColor and Shape:SolidMolecular weight:453.87Posaconazole-d5
CAS:Formula:C37H37D5F2N8O4Color and Shape:White To Off-White SolidMolecular weight:705.82Difloxacin HCl
CAS:Formula:C21H19F2N3O3·HClColor and Shape:White To Off-White SolidMolecular weight:399.40 36.46Linezolid Impurity 8 HCl
CAS:Formula:C13H18ClFN2O2·HClColor and Shape:White To Off-White SolidMolecular weight:288.75 36.46Rifamycin
CAS:<p>Rifamycin: Natural antibiotic; blocks prokaryotic RNA synthesis by halting RNA-polymerase.</p>Formula:C37H47NO12Purity:98%Color and Shape:SolidMolecular weight:697.77Posaconazole Impurity 55
CAS:Formula:C37H40F2N8O6Color and Shape:White To Off-White SolidMolecular weight:730.77Kanamycin A
CAS:<p>Kanamycin A (KanamycinA) is an aminoglycoside antibiotic with antibacterial and antiviral activity that inhibits bacterial and viral replication.</p>Formula:C18H36N4O11Purity:99.59%Color and Shape:Crystals From Methanol + Ethanol SolidMolecular weight:484.5Polymyxin B1-d7 Pentatrifluoroacetate
Formula:C56H91D7N16O13·5C2HF3O2Molecular weight:1210.54 5*114.02Cephalosporin Impurity 7
CAS:Formula:C24H22Cl2N2O5SColor and Shape:Off-White SolidMolecular weight:521.41Posaconazole Impurity 34 Oxalate
Formula:C13H20N2O2·C2H2O4Color and Shape:White To Off-White SolidMolecular weight:236.32 90.04Spectinomycin EP Impurity B DiHCl (Spectinomycin CP Impurity B DiHCl)
Formula:C14H26N2O8·2HClColor and Shape:Off-White SolidMolecular weight:350.37 2*36.46Tetracycline EP Impurity A-13C2-d6 (4-Epitetracycline-13C2-d6)
CAS:Formula:C2013C2H18D6N2O8Molecular weight:452.46Pactamycin
CAS:<p>Pactamycin, an antibiotic from Streptomyces pactum, serves as an antineoplastic and protein synthesis inhibitor.</p>Formula:C28H38N4O8Purity:98%Color and Shape:SolidMolecular weight:558.632Latamoxef
CAS:<p>Latamoxef is an oxacephem antibiotic and is a member of the cephalosporins.</p>Formula:C20H20N6O9SPurity:98%Color and Shape:SolidMolecular weight:520.47Faropenem
CAS:<p>Faropenem: an oral beta-lactam antibiotic resistant to beta-lactamases, effective against various bacteria, used for respiratory infections.</p>Formula:C12H15NO5SColor and Shape:Light Yellow PowderMolecular weight:285.31Posaconazole Impurity 35 Oxalate
Formula:C13H20N2O2·C2H2O4Color and Shape:White To Off-White SolidMolecular weight:236.32 90.03Azithromycin EP Impurity N
CAS:Formula:C36H65NO13Color and Shape:Pale Green SolidMolecular weight:719.91Linezolid-d3
CAS:Formula:C16H17D3FN3O4Color and Shape:White To Off-White SolidMolecular weight:340.37Moxidectin EP Impurity E
CAS:Formula:C37H53NO8Color and Shape:White To Off-White SolidMolecular weight:639.83Posaconazole Impurity 10 (POS-A)
Formula:C37H40F2N8O4Color and Shape:White To Off-White SolidMolecular weight:698.78Desacetyl Rifamycin S
CAS:Formula:C35H43NO11Color and Shape:Yellow Brown SolidMolecular weight:653.73Flucloxacillin EP Impurity B (Mixture of Diastereomers)
CAS:Formula:C18H19ClFN3O4SColor and Shape:White To Off-White SolidMolecular weight:427.88Clindamycin Impurity 30
CAS:Formula:C18H35N2O9PSColor and Shape:White To Off-White SolidMolecular weight:486.52Cefotiam
CAS:<p>Cefotiam (SCE-963), a parenteral cephalosporin antibiotic, exhibits broad-spectrum activity against both Gram-positive and Gram-negative bacteria [1] [2].</p>Formula:C18H23N9O4S3Color and Shape:SolidMolecular weight:525.63Bacitracin A-d7 Tritrifluoroacetate
CAS:Formula:C66H96D7N17O16S·3C2HF3O2Molecular weight:1429.76 3*114.02N-Nitroso Azithromycin EP Impurity A Acetate (N-Nitroso Azathramycin Acetate, N-Nitroso Desmethyl Azithromycin Acetate)
Formula:C37H69N3O13·C2H4O2Molecular weight:763.97 60.05Moxifloxacin Acyl Glucuronide
CAS:Formula:C27H32FN3O10Color and Shape:Off-White SolidMolecular weight:577.56Amoxicillin Impurity 16 Disodium Salt (Mixture of Diastereomers)
Formula:C24H29N5O8S2·2NaMolecular weight:579.64 2*22.99Cloxacillin EP Impurity A (Cloxacillin Penicilloic Acid)
CAS:Formula:C19H20ClN3O6SColor and Shape:White To Off-White SolidMolecular weight:453.89Linezolid Impurity 41
CAS:Formula:C16H19FN2O5Color and Shape:White To Off-White SolidMolecular weight:338.34Clarithromycin Impurity 14 (Mixture of Z and E Isomers)
Formula:C49H94N2O13Si2Molecular weight:975.46Caspofungin Impurity 5
CAS:Formula:C52H86N10O16Color and Shape:White To Off-White SolidMolecular weight:1107.31Piperacillin Methyl Ester
CAS:Formula:C24H29N5O7SColor and Shape:White To Off-White SolidMolecular weight:531.58Potassium Clavulanate EP Impurity E Dipotassium Salt
CAS:Formula:C16H16N2O10·2KMolecular weight:396.31 2*39.10Ceftriaxone-d3 Disodium Salt
CAS:Formula:C18H13D3N8O7S3·2NaColor and Shape:Off-White SolidMolecular weight:555.57 2*22.99Terbinafine Impurity 8
Formula:C27H39NColor and Shape:White To Off-White SolidMolecular weight:377.62Potassium Clavulanate
CAS:Formula:C8H8NO5·KColor and Shape:White To Off-White SolidMolecular weight:198.16 39.10Azithromycin Impurity 2
Formula:C38H70N2O14Color and Shape:White To Off-White SolidMolecular weight:778.98Ampicillin EP Impurity M Disodium Salt (Ampicillin Dimer Disodium Salt)
Formula:C32H36N6O8S2·2NaColor and Shape:White To Off-White SolidMolecular weight:696.81 2*22.99Clarithromycin EP Impurity H (Clarithromycin USP Impurity H)
CAS:Formula:C38H67NO14Color and Shape:White To Off-White SolidMolecular weight:761.95Moxifloxacin EP Impurity A HCl (Moxifloxacin USP Related Compound A HCl)
CAS:Formula:C20H21F2N3O3·HClColor and Shape:Pale Yellow SolidMolecular weight:389.40 36.46Salinomycin Sodium Salt
CAS:Formula:C42H69O11·NaColor and Shape:White To Off-White SolidMolecular weight:750.00 22.99Polymyxin B1-I Pentatrifluoroacetate
CAS:Formula:C56H98N16O13·5C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:1203.50 5*114.02Spiramycin Adipate
CAS:Formula:C43H74N2O14C46H78N2O15·C6H10O4Color and Shape:Off-White SolidMolecular weight:843.07 (I form) 899.13 (III form) 146.14Posaconazole Piperazine N4-Oxide
CAS:Formula:C37H42F2N8O5Color and Shape:Off-White SolidMolecular weight:716.79Cefadroxil EP Impurity D-d4 Trifluoroacetate (Cefadroxil-d4 (S-Isomer) Trifluoroacetate)
CAS:Formula:C16H13D4N3O5S·C2HF3O2Molecular weight:367.41 114.02Clindamycin Impurity 16
CAS:Formula:C9H18NO4SColor and Shape:White To Off-White SolidMolecular weight:271.76Cefprozil EP Impurity M
CAS:Formula:C21H23N3O7SColor and Shape:Off-White SolidMolecular weight:461.49Caspofungin Impurity 1 Trifluoroacetate (5-((3R)-3-Hydroxy-L-Ornithine)-Pneumocandin B0 Trifluoroacetate)
CAS:Formula:C50H82N8O16·C2HF3O2Molecular weight:1051.25 114.02Piperacillin Sodium EP Impurity G
CAS:Formula:C15H17N3O5Color and Shape:White To Off-White SolidMolecular weight:319.32Viomycin
CAS:<p>Viomycin: tuberactinomycin antibiotic, halts prokaryotic protein synthesis and group I intron splicing, arrests bacterial ribosomes.</p>Formula:C25H43N13O10Purity:98%Color and Shape:SolidMolecular weight:685.69Tedizolid Impurity 46
CAS:Formula:C7H7N5Color and Shape:White To Off-White SolidMolecular weight:161.17Ceftazidime EP Impurity A
CAS:Formula:C22H22N6O7S2Color and Shape:White To Off-White SolidMolecular weight:546.57Flucloxacillin Impurity 4
CAS:Formula:C13H10ClFN2O4Color and Shape:White To Off-White SolidMolecular weight:312.68Ozenoxacin Impurity 8
Formula:C16H17Cl2NO3Color and Shape:White To Off-White SolidMolecular weight:342.22Ceftizoxime Impurity 18 Trifluoroacetate
Formula:C7H8N4O3S·C2HF3O2Color and Shape:White To Off-White SolidMolecular weight:228.23 114.02Cefazolin Sodium Salt
CAS:Formula:C14H13N8O4S3·NaColor and Shape:White To Off-White SolidMolecular weight:453.50 22.99Piperacillin Impurity 4
Formula:C41H48N8O10S2Color and Shape:White To Off-White SolidMolecular weight:877.00Chloramphenicol EP Impurity A
CAS:Formula:C9H12N2O4Color and Shape:Off-White SolidMolecular weight:212.21Pneumocandin B0
CAS:Formula:C50H80N8O17Color and Shape:White To Off-White SolidMolecular weight:1065.23Aztreonam Impurity 14 DiHCl
Formula:C15H23N5O6S·2HClColor and Shape:White To Off-White SolidMolecular weight:401.44 2*36.46rac-Amoxicillin EP Impurity H (rac-Amoxicillin USP Related Compound H)
CAS:Formula:C13H17NO4Color and Shape:White To Off-White SolidMolecular weight:251.28Posaconazole Impurity 13 (POS-H)
Formula:C37H40F2N8O6Color and Shape:White To Off-White SolidMolecular weight:730.77Lincomycin EP Impurity E
CAS:Formula:C9H17NO2Color and Shape:White To Off-White SolidMolecular weight:171.24Linezolid Impurity 1
CAS:Formula:C13H20FN3O2Color and Shape:White To Off-White SolidMolecular weight:269.32Posaconazole Diastereoisomer 4 (S,S,R,S)
Formula:C37H42F2N8O4Color and Shape:White To Off-White SolidMolecular weight:700.80
