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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Vancomycin EP Impurity I (3.2-syn-Chloro-vancomycin B)
Formula:C66H75Cl2N9O24Molecular weight:1449.27Piperacillin Sulfoxide ((2S,5R,6R)-6-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide)
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C23H27N5O8SColor and Shape:White Off-White PowderMolecular weight:533.15803Difloxacin hydrochloride
CAS:Difloxacin hydrochloride (Difloxacin HCl) is a fluoroquinolone antibiotic, is a broad-spectrum antibacterial drug.Formula:C21H20ClF2N3O3Purity:99.04%Color and Shape:Off-White To Pale Yellow SolidMolecular weight:435.8Spiramycin EP Impurity H Ditrifluoroacetate
CAS:Formula:C39H66N2O12·2C2HF3O2Molecular weight:754.96 2*114.02Clindamycin Laurate HCl
CAS:Formula:C30H55ClN2O6S·HClColor and Shape:White To Off-White SolidMolecular weight:607.29 36.46Roxithromycin N-Oxide
CAS:Formula:C41H76N2O16Color and Shape:White To Off-White SolidMolecular weight:853.06Temsirolimus Impurity 1 (Temsirolimus 7-O-Desmethyl Impurity)
CAS:Formula:C55H85NO16Molecular weight:1016.29Linezolid Impurity 23 HCl
CAS:Formula:C5H10ClNO2·HClColor and Shape:White To Off-White SolidMolecular weight:151.59 36.46Thiamphenicol
CAS:Thiamphenicol (Dextrosulphenidol) is a methylsulfonyl analog of chloramphenicol. It is an antibiotic and immunosuppressive agent.Formula:C12H15Cl2NO5SPurity:99.08% - 99.8%Color and Shape:Off-White SolidMolecular weight:356.22Cefazolin Impurity 11
CAS:Formula:C7H13N5O3Color and Shape:White To Off-White SolidMolecular weight:215.21Cilastatin Impurity 22
CAS:Formula:C15H24ClNO3Color and Shape:White To Off-White SolidMolecular weight:301.81Avoparcin (Mixture of alfa- and β-Isomers)
CAS:Formula:C89H102ClN9O36(alfa)C89H101Cl2N9O36(beta)Molecular weight:1909.27 (alfa), 1943.71 (beta)Besifloxacin Impurity D
Formula:C32H28Cl2F2N4O6Color and Shape:Pale Yellow SolidMolecular weight:673.49Faropenem sodium
CAS:Faropenem sodium: Oral penem antibiotic for tuberculosis, pneumonia.Formula:C12H14NNaO5SPurity:99.41%Color and Shape:Pale Yellow CrystalsMolecular weight:307.3Posaconazole Diastereoisomer Related Compound 3
CAS:Formula:C30H35N5O3Color and Shape:Off-White SolidMolecular weight:513.64Erythromycin A 9-Methoxime
CAS:Formula:C38H70N2O13Color and Shape:Off-White SolidMolecular weight:762.98Avermectin B1
CAS:Avermectin B1 is served as anthelmintic and insecticide.Formula:C48H72O14Purity:mixture - mixtureColor and Shape:White PowderMolecular weight:873.09Rifamycin S
CAS:Rifamycin S is a potent DNA-dependent RNA polymerase inhibitor,is a quinone and an antibiotic agnet against Gram-positive bacteriaFormula:C37H45NO12Purity:98.74%Color and Shape:Yellow Orange Crystalline PowderMolecular weight:695.75Clindamycin EP Impurity C (7-epi Clindamycin)
CAS:Formula:C18H33ClN2O5SColor and Shape:Yellow SolidMolecular weight:424.98Ivermectin EP Impurity D
CAS:Formula:C48H72O15Color and Shape:White To Off-White SolidMolecular weight:889.09Dirithromycin
CAS:Dirithromycin (LY237216), a macrolide antibiotic, treats bacterial infections like bronchitis and pneumonia.Formula:C42H78N2O14Purity:98% - 98.89%Color and Shape:CrystalsMolecular weight:835.07Clindamycin Palmitate Sulfoxide HCl (Mixture of Diastereomers)
CAS:Formula:C34H63ClN2O7S·HClMolecular weight:679.40 36.46Tacrolimus EP Impurity I (Tacrolimus Diene)
CAS:Formula:C44H67NO11Color and Shape:White To Off-White SolidMolecular weight:786.02Rapamycin (Sirolimus)
CAS:Formula:C51H79NO13Color and Shape:White To Off-White SolidMolecular weight:914.192-(Dibutylamino)-1-(2,7-dichloro-9H-fluoren-4-yl)ethanol
CAS:Formula:C23H29Cl2NOMolecular weight:406.40Azithromycin EP Impurity E
CAS:Formula:C36H68N2O12Color and Shape:White To Off-White SolidMolecular weight:720.94Clindamycin Phosphate EP Impurity B (Clindamycin B 2-Phosphate)
CAS:Formula:C17H32ClN2O8PSMolecular weight:490.93Ceftaroline fosamil
CAS:Ceftaroline fosamil (TAK-599) is a cephalosporin, with activity against Gram-positive pathogens.Formula:C24H25N8O10PS4Purity:≥98%Color and Shape:SolidMolecular weight:744.74Cefazedone Impurity 14
Formula:C18H15Cl2N5O5S3Color and Shape:Pale Yellow SolidMolecular weight:548.43Cefpodoxime Proxetil Impurity 11 (Mixture of Diastereomers)
Formula:C21H27N5O10S2Color and Shape:Off-White SolidMolecular weight:573.59Deoxystreptamine Kanosaminide (6-O-(3-Amino-3-deoxy-α-D-glucopyranosyl)-2-deoxy-D-streptamine)
CAS:Heterocyclic compounds with oxygen hetero-atom(s) only, nesoiFormula:C12H25N3O7Color and Shape:Off-White SolidMolecular weight:323.16925Erythromycin-13C-d3
CAS:Formula:C3613CH64D3NO13Color and Shape:White To Off-White SolidMolecular weight:737.95Purpactin A
CAS:Purpactin A is a useful organic compound for research related to life sciences. The catalog number is T126026 and the CAS number is 133806-59-4.Formula:C23H26O7Color and Shape:SolidMolecular weight:414.454Vancomycin EP Impurity D (Desvancosaminylvancomycin B)
CAS:Formula:C59H62Cl2N8O22Color and Shape:White To Off-White SolidMolecular weight:1306.08Caspofungin impurity A
CAS:Caspofungin impurity A is an impurity found in caspofungin, a drug used to treat fungal infections. Caspofungin impurity A has been shown to inhibit bacterial growth and is thought to be responsible for the bactericidal activity of caspofungin.Formula:C51H86N10O15Purity:Min. 95%Color and Shape:PowderMolecular weight:1,079.29 g/molDecarboxy ciprofloxacin
CAS:Decarboxy ciprofloxacin is a prodrug that is active against bacteria and other microorganisms. It has been shown to have an affinity for the fluoroquinolone binding site on the bacterial ribosome, inhibiting protein synthesis and cell division. Decarboxy ciprofloxacin has been used in animals to treat infections caused by Escherichia coli, Klebsiella pneumoniae, Salmonella enterica, Proteus mirabilis, and Pseudomonas aeruginosa. Decarboxy ciprofloxacin is administered orally in the form of tablets or capsules. The drug binds to metal ions and can be detected with a biosensor that uses an aptamer-coated electrode. This sensor can be used for the detection of both metal ions and fluoroquinolones. Decarboxy ciprofloxacin is also used as a research tool toFormula:C16H18FN3OPurity:Min. 95%Color and Shape:PowderMolecular weight:287.33 g/molCefadroxil USP Related Compound I
CAS:Formula:C16H17N3O5SColor and Shape:White To Off-White SolidMolecular weight:363.39Ivermectin B1a (>85%)
CAS:Controlled ProductApplications Ivermectin B1a is a major component of Ivermectin (I940800), a semi-synthetic derivative of Abamectin; consists of a mixture of not less than 80% component B1a and not more than 20% component B1b. Antihelmintic (Onchocerca). An invitro inhibitor of SARS-CoV-2/ Covid-19. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Chabala, J.C., et al.: J. Med. Chem., 23, 1134 (1980); Campbell, W.C., et al.: Science, 221, 823 (1983); Bennett, J.L., et al.: Parasitol. Today, 4, 226 (1988); Plaisier, A.P., et al.: J. Infect. Dis., 172, 204 (1995);; Caly, L., et al.: Antivir. Res., 178Formula:C48H74O14Purity:>85%Color and Shape:White To Off-WhiteMolecular weight:875.09Moxifloxacin Impurity 31 HCl
CAS:Formula:C21H22FN3O4·HClColor and Shape:White To Off-White SolidMolecular weight:399.43 36.46Tedizolid
CAS:Tedizolid (DA-7157)is a novel oxazolidinone-class antibiotic that inhibits bacterial protein synthesis by binding to the 23S ribosomal RNA of the 50S subunit ofFormula:C17H15FN6O3Purity:96.97% - 99.89%Color and Shape:SolidMolecular weight:370.3425-Deacetyl-21-Acetyl Rifampicin
CAS:Formula:C43H58N4O12Color and Shape:Red SolidMolecular weight:822.95Neomycin Sulfate EP Impurity D TriHCl (Paromamine TriHCl)
CAS:Formula:C12H25N3O7·3HClMolecular weight:323.35 3*36.46n-Butyl-2-piperidine Carboxylic Acid
CAS:Formula:C10H19NO2Color and Shape:White To Off-White SolidMolecular weight:185.27Cefpodoxime Proxetil EP Impurity G (Mixture of Diastereomers)
CAS:Formula:C23H29N5O10S2Color and Shape:White To Off-White SolidMolecular weight:599.63Erythromycin A Enol Ether
CAS:Impurity Erythromycin EP Impurity E Applications Erythromycin A Enol Ether (Erythromycin EP Impurity E) is an impurity of Erythromycin. References McGuire, J.M., et al.: Antibiot. Chemother., 6, 281 (1952), Steffansen, B., et al.: Int. J. Pharm., 56, 159 (1989), Goldman, R.C., et al.: Antimicrob. Agents Chemother., 34, 1973 (1990),Formula:C37H65NO12Color and Shape:Light YellowMolecular weight:715.91Bacitracin B3 Tritrifluoroacetate
CAS:Formula:C65H101N17O16S·3C2HF3O2Molecular weight:1408.69 3*114.02Linezolid USP Related Compound C
CAS:Formula:C14H18FN3O3Color and Shape:Pale Yellow SolidMolecular weight:295.31Rifaximin EP Impurity E (Rifamycin S)
CAS:Formula:C37H45NO12Color and Shape:Orange SolidMolecular weight:695.76Flomoxef
CAS:Flomoxef is an antibiotic in oxacephem group and has excellent activity against various gram-positive bacteria.Formula:C15H18F2N6O7S2Purity:98%Color and Shape:SolidMolecular weight:496.47Clindamycin Impurity 30
CAS:Formula:C18H35N2O9PSColor and Shape:White To Off-White SolidMolecular weight:486.52Vancomycin hydrochloride
CAS:Vancomycin hydrochloride (Vancomycin HCl) is the hydrochloride salt of vancomycin, a branched tricyclic glycosylated peptide with bactericidal activity againstFormula:C66H76Cl3N9O24Purity:97.20% - 99.19%Color and Shape:Off White PowderMolecular weight:1485.71Ceftazidime Impurity 1
CAS:Formula:C13H19N3O5SColor and Shape:White To Off-White SolidMolecular weight:329.375-Dehydroxyl-5-oxodoramectin
CAS:Controlled ProductFormula:C50H72O14Color and Shape:NeatMolecular weight:897.10Ref: 4Z-M-182
Discontinued productIvermectin B1a
CAS:Ivermectin B1a is the major (80%) component of commercially available ivermectin and a derivative of Avermectin B1a.Formula:C48H74O14Purity:≥98%Color and Shape:SolidMolecular weight:875.09Cefixime EP Impurity B Acetic Acid Salt
CAS:Controlled ProductStability Hygroscopic Applications Cefixime EP Impurity B Acetic Acid Salt is an impurity of the third generation cephalosporin antibiotic, Cefixime (C242800). References Bian, L. et al.: Yao. Fen. Zaz., 30, 872 (2010);Formula:C15H17N5O6S2·C2H4O2Color and Shape:NeatMolecular weight:487.51
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