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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Cloxacillin Sodium Salt
CAS:Formula:C19H17ClN3O5S·NaColor and Shape:White To Off-White SolidMolecular weight:434.88 22.99Erythromycin
CAS:Erythromycin (E-Mycin) is a Macrolide and Macrolide Antimicrobial. The physiologic effect of erythromycin is by means of Decreased Sebaceous Gland Activity.Formula:C37H67NO13Purity:99.26% - 99.57%Color and Shape:Hydrated Crystals From Water Physical Description Fluffy Colorless Powder Or Fine White Powder (Ntp 1992)Molecular weight:733.93Eribulin
CAS:Eribulin binds microtubules, halts cancer cell growth, treating metastatic breast cancer.Formula:C40H59NO11Purity:99.96%Color and Shape:SolidMolecular weight:729.90(5R)-[3-[3-Fluoro-4-(4-morpholinyl)phenyl]-2-oxo-5-oxazolidinyl]methyl Acetate
CAS:Color and Shape:NeatN-Nitroso Moxifloxacin EP Impurity G (N-Nitroso ent-Moxifloxacin)
Formula:C21H23FN4O5Molecular weight:430.44Cefamandole Impurity 9
CAS:Formula:C18H18N6O5S2Color and Shape:White To Off-White SolidMolecular weight:462.50(E,4E)-4-(4,4-dimethylpent-2-ynylidene)pent-2-ene-1,5-diol
CAS:Formula:C12H18O2Molecular weight:194.27Chloramphenicol
CAS:Chloramphenicol (Chloromycetin) is a broad-spectrum antibiotic that inhibits the biosynthesis of bacterial proteins. Cost-effective and quality-assured.Formula:C11H12Cl2N2O5Purity:99.6% - 99.84%Color and Shape:Needles Or Elongated Plates From Water Or Ethylene Dichloride SolidMolecular weight:323.13Doripenem-d4 Sodium Salt
CAS:Formula:C15H19N4O6S2D4·NaColor and Shape:White To Off-White SolidMolecular weight:423.53 22.99Doxycycline hydrochloride
CAS:Doxycycline hydrochloride (Hyclate) is a synthetic tetracycline derivative with similar antimicrobial activity.Formula:C22H24N2O8·HClPurity:98.77%Color and Shape:Yellow Hygroscopic Crystalline PowderMolecular weight:480.9Erythromycin (Roxithromycin EP Impurity A)
CAS:Formula:C37H67NO13Color and Shape:White To Off-White SolidMolecular weight:733.94Lomefloxacin Impurity 10
Formula:C12H7F2NO3Color and Shape:White To Off-White SolidMolecular weight:251.19Tetracycline EP Impurity D (Chlortetracycline EP Impurity I, Lymecycline EP Impurity D, 4-Epianhydrotetracycline)
CAS:Formula:C22H22N2O7Molecular weight:426.43Clavulanate Lithium
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C8H9NO5·LiColor and Shape:White Light Yellow PowderMolecular weight:206.06408Linezolid N-oxide
CAS:Please enquire for more information about Linezolid N-oxide including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C16H20FN3O5Purity:Min. 95%Molecular weight:353.35 g/molCefmenoxime hydrochloride
CAS:Cefmenoxime hydrochloride: cephalosporin antibiotic, IV/IM, targets gram-positive/negative bacteria, beta-lactamase resistant, effective, low side effects.Formula:C32H35ClN18O10S6Purity:98.02% - 98.41%Color and Shape:SolidMolecular weight:1059.58Sulbactam Impurity 1 (6-α-Bromopenicllanic Acid)
CAS:Formula:C8H10BrNO3SColor and Shape:Yellow LiquidMolecular weight:280.14Thiamphenicol Amine HCl
CAS:Formula:C10H15NO4S·HClColor and Shape:White To Off-White SolidMolecular weight:245.30 36.46Eperezolid
CAS:Eperezolid (PNU-100592), an oxazolidinone antibiotic, inhibits staphylococci (MIC90=1-4 mg/ml) effectively, methicillin resistance notwithstanding.Formula:C18H23FN4O5Purity:96.18%Color and Shape:SolidMolecular weight:394.4Ref: TM-T15237
1mg96.00€2mg125.00€5mg202.00€10mg283.00€25mg464.00€50mg652.00€100mg882.00€500mg1,758.00€1mL*10mM (DMSO)224.00€Aztreonam Impurity 4 Tetrasodium Salt
CAS:Formula:C26H30N10O16S4·4NaColor and Shape:Pale Yellow SolidMolecular weight:866.84 4*22.99Erythromycin-13C,d3
CAS:Controlled ProductApplications Antibiotic. References Koch, W.L., et al.: Anal. Profiles Drug Subs., 8, 157 (1979)Formula:C3613CH64D3NO13Color and Shape:NeatMolecular weight:737.94Caspofungin Impurity 13 Trifluoroacetate (Mixture of Diastereomers)
CAS:Formula:C50H82N8O16·C2HF3O2Molecular weight:1051.25 114.02Deoxystreptamine-kanosaminide
CAS:Applications An impurity of Tobramycin (T524000(P)), which is a single factor antibiotic comprising about 10% of nebramycin, the aminoglycosidic antibiotic complex produced by Streptomyces tenebrarius; antibacterial. References Brandl, M. et al.: Drug Dev. Ind. Pharm., 18, 1423 (1992); Murase, M. et al.: Prog. Antimicrob. Anticancer Chemother., Proc. Int. Congr. Chemother., 6, 1098 (1970); Koch, K.F., et al.: Antimicrob. Agents Chemother., 309 (1970); Welles, J.S., et al.: Toxicol. Appl. Pharmacol., 22, 332 (1972); Dash, A.K., et al.: Anal. Profiles Drug Subs. Excip., 24, 579 (1996)Formula:C12H25N3O7Color and Shape:Off-WhiteMolecular weight:323.34Spectinomycin
CAS:Spectinomycin, a broad-spectrum antibiotic, halts protein synthesis in various bacteria by targeting ribosomes.Formula:C14H24N2O7Color and Shape:SolidMolecular weight:332.35Kirromycin
Kirromycin, an antibiotic from Streptomyces, blocks protein synthesis and stunts B. brevis growth by hindering elongation factor Tu in E. coli.Formula:C43H60N2O12Color and Shape:SolidMolecular weight:796.955α-[[(2-Amino-4-thiazolyl)(hydroxyimino)acetyl]amino]-1,2,5,7-tetrahydro-5-methyl-7-oxo-4H-Furo[3
CAS:Controlled ProductImpurity USP Cefdinir Related Compound A Sodium Salt Stability Hygroscopic Applications (2(R)-2-[(Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)acetamido]-2-[(2RS,5RS)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl]acetic Acid is an impurity in the synthesis of Cefdinir (C242670), a Cephalosporin antibiotic structurally similar to Cefixime (C242800). References Kamimura, T., et al.: Antimicrob. Agents Chemother., 25, 98 (1984),Yamanaka, H., et al.: J. Antibiot., 38, 1738 (1985), Guay, D.R.P., et al.: Antimicrob. Agents Chemother., 30, 485 (1986),Formula:C14H14N5NaO6S2Color and Shape:NeatMolecular weight:435.41Tigecycline Impurity 15
CAS:Formula:C23H28N4O8Color and Shape:White To Off-White SolidMolecular weight:488.50Cefepime EP Impurity E (Cefepime USP Related Compound E (Free Form))
CAS:Formula:C13H19N3O3SMolecular weight:297.38Bis-clindamycinyl Phosphate
Controlled ProductApplications Bis-clindamycinyl Phosphate is an impurity of Clindamycin (C580000), which is an antibiotic prepared from Lincomycin (L466200), used to treat various infections. References Birkenmeyer, R.D., et al.: J. Med. Chem., 13, 616 (1970); Oesterling, et al.: J. Pharm. Sci., 59, 63 (1970); Gray, J.E., et al.: Toxicol. Appl. Pharmacol., 21, 516 (1972); Brown, L.W., et al.: Anal. Profiles Drug Subs., 10, 75 (1981);Formula:C36H65Cl2N4O12PS2Color and Shape:NeatMolecular weight:911.93Ref: 4Z-R-1822
Discontinued productSisomicin Sulfate
CAS:Sisomicin sulfate (Pathomycin), a broad-spectrum antibiotic from Micromonospora inyoensis, is strongest against gram-positive bacteria.Formula:C19H37N5O7·5H2SO4Purity:580IU - 99.83%Color and Shape:SolidMolecular weight:1385.43Spinosad
CAS:Spinosad: natural insecticide from S. spinosa, mix of spinosyn A & D, targets insect nAChRs.Formula:C41H65NO10Purity:95.59% - 99.06%Color and Shape:Solid PowderMolecular weight:731.96Lumefantrine-d9 (Benflumetol-d9)
CAS:Formula:C30H23D9Cl3NOColor and Shape:Pale Yellow SolidMolecular weight:538.00δ-2-Avermectin B1a
CAS:Formula:C48H72O14Color and Shape:White To Off-White SolidMolecular weight:873.09Spiramycin Impurity 2 Ditrifluoroacetate
Formula:C38H64N2O12·2C2HF3O2Molecular weight:740.93 2*114.02Tazobactam Acid Impurity T-7
CAS:Formula:C12H16N4O5SColor and Shape:Off-White SolidMolecular weight:328.34Sulbactam
CAS:Sulbactam (CP45899) is a semi-synthetic inhibitor that enhances antibiotics by blocking beta-lactamase.Formula:C8H11NO5SPurity:98.74% - 99.32%Color and Shape:White To Off-White Crystalline PowderMolecular weight:233.243-(4-(4-Morpholinyl)phenyl)-5-(hydroxymethyl)oxazolidin-2-one
CAS:3-(4-(4-Morpholinyl)phenyl)-5-(hydroxymethyl)oxazolidin-2-one is an impurity in the drug development process. It is used as a standard for HPLC testing and a synthetic intermediate. It has been shown to have niche use in the pharmaceutical industry. 3-(4-(4-Morpholinyl)phenyl)-5-(hydroxymethyl)oxazolidin-2-one has been found to be metabolized through oxidation and reduction reactions, leading to the formation of metabolites such as 2,6-dihydroxypyridine (DHP). Further metabolism studies are required for this substance.Formula:C14H18N2O4Purity:Min. 95%Color and Shape:White to off-white solid.Molecular weight:278.3 g/molAmoxicilloic Acid Dimers 1 and 2
CAS:Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structureFormula:C32H40N6O11S2Color and Shape:White Off-White SolidMolecular weight:748.21965Polymyxin B Sulfate
CAS:Antibiotics nesoiFormula:C56H98N16O13C55H96N16O13C55H96N16O13C56H98N16O13Color and Shape:White Off-White PowderMolecular weight:4782.96841(5S)-5-[[(1,1-Dimethylethyl)amino]methyl]-3-[3-fluoro-4-(4-morpholinyl)phenyl]-2-oxazolidinone
CAS:Color and Shape:NeatTrabectedin
CAS:Trabectedin (Ecteinascidin 743) has potent antitumor activity and the potential for soft tissue sarcoma and ovarian cancer research.Formula:C39H43N3O11SPurity:≥98%Color and Shape:SolidMolecular weight:761.84Amoxicillin
CAS:Amoxicillin inactivates bacterial cell wall proteins, disrupting peptidoglycan cross-linking, which weakens walls and causes cell lysis.Formula:C16H19N3O5SPurity:98.03% - 99.92%Color and Shape:White Solid PowderMolecular weight:365.4Decarboxy Moxifloxacin
CAS:Decarboxylated moxifloxacin is a moxifloxacin derivative, an oral antibiotic for sinusitis, bronchitis, and pneumonia.Formula:C20H24FN3O2Purity:99.43%Color and Shape:SolidMolecular weight:357.42Ref: TM-T10987
1mg70.00€5mg140.00€10mg202.00€25mg341.00€50mg507.00€100mg722.00€1mL*10mM (DMSO)154.00€Posaconazole Diastereoisomer 2 (R,S,R,R)
CAS:Formula:C37H42F2N8O4Color and Shape:White To Off-White SolidMolecular weight:700.80Piperacillin Methyl Ester
CAS:Formula:C24H29N5O7SColor and Shape:White To Off-White SolidMolecular weight:531.58Tebipenem Tetrahydrate
CAS:Formula:C16H21N3O4S2·4H2OColor and Shape:Off-White SolidMolecular weight:383.48 4*18.02Cefepime 7-Epimer Chloride
Formula:C19H25N6O5S2·ClColor and Shape:Pale Yellow SolidMolecular weight:481.58 35.45Posaconazole Impurity 34 Oxalate
Formula:C13H20N2O2·C2H2O4Color and Shape:White To Off-White SolidMolecular weight:236.32 90.04Ertapenem Side Chain Enantiomer 2 HCl
CAS:Formula:C12H14N2O3S·HClColor and Shape:White To Off-White SolidMolecular weight:266.32 36.46Moxifloxacin Impurity 9
CAS:Formula:C16H15F2NO4Color and Shape:Off-White SolidMolecular weight:323.30Micafungin Impurity FR-901379
CAS:Formula:C51H82N8O21SColor and Shape:Off-White SolidMolecular weight:1175.31Cefoperazone dihydrate
CAS:Cefoperazone dihydrate, a semi-synthetic cephalosporin, exhibits a wide range of antibacterial properties.Formula:C25H27N9O8S2Color and Shape:SolidMolecular weight:645.67Benzathine Benzylpenicillin EP Impurity A
CAS:Formula:C9H14N2Color and Shape:Colorless LiquidMolecular weight:150.23Griseofulvin EP Impurity B (Dechloro Griseofulvin)
CAS:Formula:C17H18O6Color and Shape:Off-White SolidMolecular weight:318.33Azithromycin-13C-d3
CAS:Formula:C3713CH69D3N2O12Color and Shape:White To Off-White SolidMolecular weight:753.01Ampicillin EP Impurity F (Mixture of Diastereomers)
CAS:Formula:C15H21N3O3SColor and Shape:White To Off-White SolidMolecular weight:323.41Tedizolid Impurity 38
CAS:Formula:C10H9BrFNO3Color and Shape:White To Off-White SolidMolecular weight:290.09Tedizolid Phosphate N-Oxide
Formula:C17H16FN6O7PColor and Shape:Pale Yellow SolidMolecular weight:466.32Cefmetazole Related Compound 6
Formula:C15H17N7O5S3Color and Shape:White To Off-White SolidMolecular weight:471.53Moxifloxacin Impurity 17
CAS:Formula:C15H12F3NO3Color and Shape:White To Off-White SolidMolecular weight:311.26Mecillinam
CAS:Mecillinam, an antibiotic, targets Gram-negative bacteria, mainly for urinary infections and some fevers.Formula:C15H23N3O3SPurity:95.00%Color and Shape:SolidMolecular weight:325.43Aztreonam USP Related Compound A (Open-ring Aztreonam)
CAS:Formula:C13H19N5O9S2Color and Shape:White To Off-White SolidMolecular weight:453.44(R)-3-(3-Fluoro-4-morpholin-4-ylphenyl)-2-oxo-5-oxazolidinyl)methyl methansulfonate
CAS:(R)-3-(3-Fluoro-4-morpholin-4-ylphenyl)-2-oxo-5-oxazolidinyl)methyl methansulfonate is a Custom synthesis, drug product, Metabolite, Synthetic, Drug development, Impurity standard, Metabolism studies, API impurity, Natural, pharmacopoeia, analytical and HPLC standard. It is CAS No. 174649-09-3.Formula:C15H19FN2O6SPurity:Min. 95%Molecular weight:374.39 g/mol
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