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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Ref: 4Z-T-199007
Discontinued productCaspofungin Impurity 1 (5-((3R)-3-Hydroxy-L-Ornithine)-Pneumocandin B0)
CAS:Formula:C50H82N8O16Molecular weight:1051.25Desbutyl Lumefantrine HCl
CAS:Formula:C26H24Cl3NO·HClColor and Shape:Yellow SolidMolecular weight:472.83 36.46Kanamycin
CAS:Kanamycin (Kanamycin A) is an aminoglycoside antibiotic with antibacterial activity, used in research on tuberculosis and pneumonia.Purity:99.91%Color and Shape:SoildPhenoxymethylpenicillin EP Impurity E
CAS:Formula:C16H20N2O6SColor and Shape:White To Off-White SolidMolecular weight:368.40Erythromycin Impurity 9 (Cycloester Erythromycin Enol Ether)
CAS:Formula:C38H63NO13Color and Shape:White To Off-White SolidMolecular weight:741.92Amifloxacin
CAS:Amifloxacin (Win49375) is a synthetic antibacterial compound and showed moderate activity against Staphylococcus aureus, with MICs of less than or equal to 2Formula:C16H19FN4O3Purity:98.1%Color and Shape:SolidMolecular weight:334.35(5R)-3-(3-Fluoro-4-morpholinophenyl)-5-(hydroxymethyl)oxazolidin-2-one
CAS:Controlled ProductFormula:C14H17FN2O4Color and Shape:NeatMolecular weight:296.30Azithromycin Impurity 3
CAS:Formula:C38H74N2O13Color and Shape:White To Off-White SolidMolecular weight:767.01Dirithromycin-13C-d3
CAS:Formula:CC41H75D3N2O14Color and Shape:White To Off-White SolidMolecular weight:839.10D-Penicillamine-d3
CAS:Formula:C5H8D3NO2SColor and Shape:White To Off-White SolidMolecular weight:152.23(S)-5-((tert-Butylamino)methyl)-3-(3-fluoro-(4-morpholinyl)phenyl)oxazolidin-2-one
CAS:(S)-5-((tert-Butylamino)methyl)-3-(3-fluoro-(4-morpholinyl)phenyl)oxazolidin-2-one is a drug product with CAS No. 1215006-08-8, which is a metabolite of Fluoxetine. It is an impurity standard for Fluoxetine and has been used as a reference compound in metabolism studies. (S)-5-((tert-Butylamino)methyl)-3-(3-fluoro-(4-morpholinyl)phenyl)oxazolidin-2-one is also an analytical reagent that can be used to calibrate HPLC systems.Formula:C18H26FN3O3Purity:Min. 95%Color and Shape:White To Off-White SolidMolecular weight:351.42 g/molLasalocid
CAS:Lasalocid (Lasalocid-A) is an ion carrier antibiotic produced by Streptomyces, which has antimicrobial and parasitic properties and is often added to feed.Formula:C34H54O8Purity:98.06% - 99.35%Color and Shape:SolidMolecular weight:590.79Cefadroxil Impurity 2
CAS:Formula:C9H11NO3Color and Shape:White To Off-White SolidMolecular weight:181.19Cefotaxime Impurity 4
CAS:Formula:C16H16N5O7S2Color and Shape:White To Off-White SolidMolecular weight:455.46Clarithromycin Impurity 14 (Mixture of Z and E Isomers)
Formula:C49H94N2O13Si2Molecular weight:975.46Amikacin EP Impurity E
Formula:C22H43N5O13Color and Shape:White To Off-White SolidMolecular weight:585.61Sulbactam sodium
CAS:Sulbactam sodium (CP-45899-2) (Unasyn) is an irreversible β-lactamase inhibitor.Formula:C8H10NO5S·NaPurity:99.76%Color and Shape:White Or Off-White Crystalline PowderMolecular weight:255.22Clindamycin Phosphate Impurity 10 Sodium Salt
Formula:C18H33ClN2O10PS·NaColor and Shape:White To Off-White SolidMolecular weight:535.96 22.99(4S)-2-[Carboxy[(phenoxy-acetyl)amino]methyl]-5,5-dimethylthiazolidine-4-carboxylic Acid (Penicilloic Acids of Phenoxymethylpenicillin)
CAS:Controlled ProductFormula:C16H20N2O6SColor and Shape:NeatMolecular weight:368.40Cefiderocol
CAS:Cefiderocol (S-649266) is a new type of siderophore-cephalosporin conjugate with antibacterial activity, inhibiting aerobic gram-negative bacteria.Formula:C30H34ClN7O10S2Purity:98.46%Color and Shape:SolidMolecular weight:752.22Lomefloxacin Impurity 2 HCl
Formula:C17H20FN3O4·HClColor and Shape:White To Off-White SolidMolecular weight:349.36 36.46Clindamycin Impurity 25 (Sulfone)
CAS:Formula:C18H33ClN2O7SColor and Shape:White To Off-White SolidMolecular weight:456.98Besifloxacin Impurity A HCl
CAS:Formula:C19H21ClFN3O3·HClColor and Shape:Yellow SolidMolecular weight:393.85 36.46Clindamycin 2-Phosphate Sulfoxide (Mixture of Diastereomers)
CAS:Formula:C18H34ClN2O9PSColor and Shape:White To Off-White SolidMolecular weight:520.96Cefotiam Impurity 25
CAS:Formula:C13H14N4O4S2Color and Shape:White To Off-White SolidMolecular weight:354.40Cefiderocol Sulfate Tosylate
CAS:Formula:C30H35ClN7O10S2·C7H7O3S·O4S)·3C7H8O3SMolecular weight:3*753.22. 171.34. 95.95. 3*172.20Amoxicillin EP Impurity F (Amoxicillin USP Related Compound F)
CAS:Formula:C10H8N2O2Color and Shape:Yellow SolidMolecular weight:188.19Moxifloxacin EP Impurity C HCl (Moxifloxacin USP Related Compound C HCl)
CAS:Formula:C22H26FN3O4·HClColor and Shape:Pale Yellow SolidMolecular weight:415.47 36.46Minocycline EP Impurity B (Sancycline)
CAS:Formula:C21H22N2O7Color and Shape:Off-White SolidMolecular weight:414.41Erythromycin-d3
CAS:Controlled ProductApplications Isotope labelled Erythromycin (E649950), an antibiotic useful for the treatment of a number of bacterial infection, usually prescribed to patients with allergy to penicillin. References Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979),Formula:C37H64D3NO13Color and Shape:WhiteMolecular weight:736.96Cefpodoxime Proxetil Impurity 5 (Mixture of Diastereomers)
Formula:C30H37N7O12S3Color and Shape:White To Off-White SolidMolecular weight:783.84Cilastatin Impurity 3
Formula:C13H21NO4Color and Shape:White To Off-White SolidMolecular weight:255.31Potassium Clavulanate EP Impurity G Enantiomer
CAS:Formula:C13H15NO6Color and Shape:White To Off-White SolidMolecular weight:281.26Flomoxef sodium
CAS:Flomoxef sodium, an antibiotic belonging to the oxacephem group, exhibits excellent activity against a broad spectrum of Gram-positive bacteria.Formula:C15H17F2N6NaO7S2Purity:97.88%Color and Shape:SolidMolecular weight:518.44Tacrolimus Impurity 6 (Tacrolimus Hydroxy Acid Impurity)
CAS:Formula:C44H71NO13Molecular weight:822.06Cefazedone Lactone
CAS:Formula:C15H11Cl2N3O5SColor and Shape:White To Off-White SolidMolecular weight:416.23Aztreonam Impurity 14 HCl
Formula:C15H23N5O6S·HClColor and Shape:White To Off-White SolidMolecular weight:401.44 36.46Thienamycin (>80%)
CAS:Controlled ProductStability Hygroscopic, Temperature Sensitive, Very Unstable Applications Thienamycin is one of the most potent naturally produced antibiotics known thus far. It has excellent activity against both Gram-positive and Gram-negative bacteria and is resistant to bacterial β-lactamase enzymes. References Kahan, J., et al.: J. Antibiot., 32, 1 (1979); Bradley, J., et al.: Int. J. Antimicrob. Agents, 11, 93 (1999); Spratt, B., et al.: Antimcrob. Agents Chemother., 12, 406 (1977);Formula:C11H16N2O4SPurity:>80%Color and Shape:NeatMolecular weight:272.32Erythromycin EP Impurity C (Erythromycin E)
CAS:Formula:C37H65NO14Color and Shape:Off-White SolidMolecular weight:747.92N-Desmethyl Tetracycline (N-Desmethyl Oxytetracycline EP Impurity
Formula:C21H22N2O8Molecular weight:430.41Cefradine Impurity 9 HCl
CAS:Formula:C8H9NO3·HClColor and Shape:White To Off-White SolidMolecular weight:167.16 36.46Moxifloxacin Impurity 18
CAS:Formula:C14H13FN2O4Color and Shape:Off-White SolidMolecular weight:292.27Decladinosyl Clarithromycin (3-O-De(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)-6-O-methylerythromycin; 3-O-Decladinosyl-6-O-methylerythromycin A)
CAS:Lactones, nesoiFormula:C30H55NO10Color and Shape:White Off-White SolidMolecular weight:589.382624,32-Bis-O-(tert-butyldimethylsilyl)-FK-506
CAS:Controlled ProductApplications Protected form of FK-506 (Tacrolimus) References Rokaw, M.D., et al.: Am. J. Physiol., 271, C194 (1996), Knoll, G.A., et al.: Brit. Med. J., 318, 1104 (1999),Formula:C56H97NO12Si2Color and Shape:NeatMolecular weight:1032.54lufenuron
CAS:Lufenuron (Fluphenacur) is a chitin-synthesis inhibitor.Formula:C17H8Cl2F8N2O3Purity:99.87%Color and Shape:CoaMolecular weight:511.15Tigecycline Impurity 23
CAS:Controlled ProductFormula:C26H32N4O8Color and Shape:White To Off-White SolidMolecular weight:528.56Ceftaroline Fosamil Impurity 25 and Ceftaroline Fosamil Impurity 26 (Equilibrium Form)
CAS:Formula:C28H24N2O5SMolecular weight:500.57Cefepime EP Impurity D (Cefepime USP Related Compound D)
CAS:Formula:C6H7N3O3SColor and Shape:White To Off-White SolidMolecular weight:201.20Cefdinir Isoxazole Analog
CAS:Formula:C13H11N3O6SColor and Shape:Off-White SolidMolecular weight:337.31Roxithromycin
CAS:Roxithromycin (RU-28965) is a semi-synthetic derivative of the macrolide antibiotic erythromycin with antibacterial and anti-malarial activities.Formula:C41H76N2O15Purity:99.17% - 99.29%Color and Shape:White Crystalline PowderMolecular weight:837.05Moxifloxacin Impurity 4 DiHCl
CAS:Formula:C14H20N2·2HClColor and Shape:Pale Red SolidMolecular weight:216.33 2 36.46Pradofloxacin
CAS:Pradofloxacin is a fluoroquinolone antibioticthat exerts its bactericidal effect by inhibiting bacterial DNA gyrase and topoisomerase IV.Formula:C21H21FN4O3Purity:98.76%Color and Shape:SolidMolecular weight:396.41Piperacillin EP Impurity M Disodium Salt
CAS:Formula:C23H27N5O8S·2NaColor and Shape:White To Off-White SolidMolecular weight:533.56 2*22.99Delta 2 Cefdinir
CAS:Delta 2 Cefdinir is a cephalosporin antibiotic used for the treatment of respiratory tract infections and skin infections. The drug product is an analytical standard that has been custom synthesized for metabolism studies. It is also used as an impurity standard for synthesis in research and development, as well as for HPLC analysis. Delta 2 Cefdinir is a high-purity, pharmacopoeia grade API with a purity of >98% and contains no detectable levels of natural impurities.Formula:C14H13N5O5S2Purity:Min. 95%Molecular weight:395.42 g/molCefprozil Impurity 4
Formula:C17H19N3O6SColor and Shape:White To Off-White SolidMolecular weight:393.41Ceftazidime Impurity 5
CAS:Formula:C20H22N4O4S3Color and Shape:Pale Yellow SolidMolecular weight:478.60Oritavancin diphosphate
CAS:Oritavancin diphosphate, a novel semisynthetic glycopeptide antibiotic, targets serious Gram-positive infections.Formula:C86H103Cl3N10O34P2Purity:100% - 99.49%Color and Shape:SolidMolecular weight:1989.09
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