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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Cefdinir-13C-15N2
CAS:Formula:C1313CH13N315N2O5S2Color and Shape:Pale Yellow SolidMolecular weight:398.39Moxifloxacin EP Impurity G (ent-Moxifloxacin)
CAS:Formula:C21H24FN3O4Color and Shape:Yellow SolidMolecular weight:401.44Tazobactam Diphenylmethyl Ester
CAS:Controlled ProductFormula:C23H22N4O5SColor and Shape:NeatMolecular weight:466.51Bacitracin Zinc
CAS:Antibiotics nesoiFormula:C66H101N17O16SZn(BacitracinAZinc)C65H99N17O16SZn(BacitracinB1B2orB3Zinc)Color and Shape:White Tan Light Brown PowderMolecular weight:1483.66243Ampicillin EP Impurity C (Ampicillin Diketopiperazine)
CAS:Formula:C16H19N3O4SColor and Shape:Off-White SolidMolecular weight:349.41Cefotaxime
CAS:Cefotaxime is an inhibitor of penicillin binding protein.Formula:C16H17N5O7S2Purity:98.31% - 99.77%Color and Shape:SolidMolecular weight:455.47Terbinafine-d7 HCl
CAS:Formula:C21H18D7N·HClColor and Shape:White To Off-White SolidMolecular weight:298.48 36.46Cefamandole EP Impurity A
CAS:Formula:C17H16N2O6SColor and Shape:White To Off-White SolidMolecular weight:376.38Cefixime EP impurity B acetic acid
CAS:Controlled ProductCefixime EP impurity B acetic acid is a research and development product. It is an impurity of cefixime EP that has been synthesized for use as an impurity standard. This compound is a metabolite of the drug cefixime EP. Cefixime EP impurity B acetic acid can be used to determine drug metabolism by studying the formation, detection and identification of metabolites in biological samples. It also can be used to develop analytical methods for the determination of metabolites in biological samples. Cefixime EP impurity B acetic acid is a synthetic compound that is highly pure with a pharmacopoeia grade purity level. This product is suitable for use in drug product, custom synthesis, and HPLC standard applications.Formula:C17H21N5O8S2Purity:Min. 95%Color and Shape:PowderMolecular weight:487.5 g/molCilastatin Impurity 2 Sodium Salt
Formula:C13H19ClNO3·NaColor and Shape:White To Off-White SolidMolecular weight:272.75 22.99Ertapenem
CAS:Ertapenem: injectable carbapenem with broad antimicrobial spectrum, resistant to many beta-lactamases.Formula:C22H25N3O7SColor and Shape:SolidMolecular weight:475.51Sulbactam Pivoxil
CAS:Formula:C14H21NO7SColor and Shape:White To Off-White SolidMolecular weight:347.38Alvespimycin
CAS:Alvespimycin (17-DMAG) is a potent Hsp90 inhibitor with potential anticancer activity, which acts by binding to Hsp90.Formula:C32H48N4O8Purity:100%Color and Shape:SolidMolecular weight:616.75Bis(2-methylaminoethyl) Ether (2,2'-oxybis(N,N-dimethylethan-1-amine))
CAS:Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters, salts thereof, nesoiFormula:C8H20N2OColor and Shape:Colorless LiquidMolecular weight:160.15756Roxithromycin impurity E
CAS:Roxithromycin impurity E is a metabolite of roxithromycin. It is a yellow powder with a melting point of about 130°C and a molecular weight of 226.14g/mol. Roxithromycin impurity E has been shown to be an inhibitor of CYP3A4 and CYP2D6, as well as an inducer of CYP1A2. This impurity can be used for the research and development of roxithromycin, as well as production of analytical standards for HPLC analysis.Formula:C40H74N2O15Purity:Min. 95%Molecular weight:823.02 g/molLinezolid Impurity 80
CAS:Formula:C15H22FN3O3Color and Shape:White To Off-White SolidMolecular weight:311.36(E)-Cefetamet Pivoxil
CAS:Formula:C20H25N5O7S2Color and Shape:Pale Yellow To Brown SolidMolecular weight:511.57Fosfomycin Trometamol EP Impurity C
CAS:Formula:C4H12NO6PColor and Shape:Colorless Sticky Semi-SolidMolecular weight:201.11Cephalosporin Impurity 7
CAS:Formula:C24H22Cl2N2O5SColor and Shape:Off-White SolidMolecular weight:521.41Difloxacin HCl
CAS:Formula:C21H19F2N3O3·HClColor and Shape:White To Off-White SolidMolecular weight:399.40 36.46Micafungin Metabolite M1
CAS:Please enquire for more information about Micafungin Metabolite M1 including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C56H71N9O20Purity:Min. 95%Molecular weight:1,190.21 g/molN-(((5S)-3-(4-(4-Morpholinyl)phenyl)-2-oxo-5-oxazolidinyl)methyl) acetamide
CAS:N-(((5S)-3-(4-(4-Morpholinyl)phenyl)-2-oxo-5-oxazolidinyl)methyl) acetamide is an impurity of the antibiotic linezolid. It is a contaminant that can be found in urine and blood samples. N-(((5S)-3-(4-(4-Morpholinyl)phenyl)-2-oxo-5-oxazolidinyl)methyl) acetamide has been shown to be amyloidogenic, meaning it can form plaques in the brain and lead to Alzheimer's disease.Formula:C16H21N3O4Purity:Min. 95%Color and Shape:White to off-white solid.Molecular weight:319.36 g/molDesbutyl Lumefantrine-d9 (Mixture of Z and E Isomers)
CAS:Formula:C26H15D9Cl3NOMolecular weight:481.89Ledipasvir (acetone)
CAS:Ledipasvir (acetone) (GS-5885 acetone) is an HCV NS5A polymerase inhibitor, used for the treatment of hepatitis C virus infection.Formula:C52H60F2N8O7Purity:99.72%Color and Shape:SolidMolecular weight:947.08Ref: 4Z-M-27112
Discontinued productCefditoren Impurity 2 (Cefditoren Open Ring) (Mixture of Diastereomers)
CAS:Formula:C25H30N6O8S3Molecular weight:638.73Patupilone (Epothilone B)
CAS:Formula:C27H41NO6SColor and Shape:White To Off-White SolidMolecular weight:507.69Gentamicin Sulfate EP Impurity E DiHBr (2-Deoxystreptamine DiHBr)
CAS:Formula:C6H14N2O3·2HBrColor and Shape:White To Off-White SolidMolecular weight:162.19 2*80.91Moxifloxacin Impurity 38
CAS:Formula:C21H24FN3O5Color and Shape:Pale Yellow SolidMolecular weight:417.44Benzylpenicillin Potassium EP Impurity E (Benzylpenicillin (Benzathine) EP Impurity E, Benzylpenicillin (Procaine) EP Impurity B, Benzylpenicillin Sodium EP Impurity E) (Mixture of Diastereomers)
CAS:Formula:C16H20N2O5SColor and Shape:White To Off-White SolidMolecular weight:352.41Potassium Clavulanate EP Impurity B Sodium Salt
CAS:Formula:C11H15N2O4·NaColor and Shape:Pale Yellow SolidMolecular weight:239.25 22.99Ertapenem sodium
CAS:Ertapenem sodium (MK-826) is a long-acting carbapenem antibiotic effective against a wide range of bacteria, including ESBL producers.Formula:C22H24N3O7S·NaPurity:96.05% - 98.44%Color and Shape:White Or Off-White PowderMolecular weight:497.5Ref: TM-T4991
5mg47.00€10mg59.00€25mg90.00€50mg120.00€100mg187.00€200mg274.00€500mg462.00€1mL*10mM (DMSO)58.00€Ceftriaxone sodium hydrate
CAS:Ceftriaxone sodium hydrate is a broad-spectrum cephalosporin antibiotic with a very long half-life and high penetrability to meninges, eyes and inner ears.Formula:C18H16N8Na2O7S3·5H2OPurity:99.77% - 99.78%Color and Shape:White Or Almost White Crystalline Powder OdorlessMolecular weight:661.67-Epiclindamycin 2-Phosphate (>90%)
CAS:Impurity Clindamycin Phosphate EP Impurity L Applications 7-Epiclindamycin 2-Phosphate (Clindamycin Phosphate EP Impurity L) is an impurity of Clindamycin (C580000), a semi-synthetic antibiotic prepared from Lincomycin. Antibacterial. 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:C18H34ClN2O8PSPurity:>90%Color and Shape:White To Off-WhiteMolecular weight:504.96Enrofloxacin-d5
CAS:Controlled ProductApplications Enrofloxacin-d5 is a labelled fluorinated quinolone antibacterial. References Altreuther, P., et al.: Vet. Med. Rev., 2, 87 (1987),Formula:C19H5H17FN3O3Color and Shape:NeatMolecular weight:364.43Besifloxacin HCl
CAS:Formula:C19H21ClFN3O3·HClColor and Shape:Pale Yellow SolidMolecular weight:393.84 36.46Cefminox Sodium Salt
CAS:Formula:C16H20N7O7S3·NaColor and Shape:Off-White SolidMolecular weight:518.57 22.99Puromycin
CAS:Puromycin (NSC-3055) is an antibiotic protein synthesis inhibitor.Formula:C22H29N7O5Purity:98%Color and Shape:SolidMolecular weight:471.51Posaconazole Diastereoisomer Related Compound 4
CAS:Formula:C30H35N5O3Color and Shape:Off-White SolidMolecular weight:513.65(2E,4E)-4-(4,4-Dimethyl-2-pentyn-1-ylidene)-2-pentenedioic Acid 1,5-Dimethyl Ester
CAS:Formula:C14H18O4Molecular weight:250.29Ampicillin EP Impurity M Disodium Salt (Ampicillin Dimer Disodium Salt)
Formula:C32H36N6O8S2·2NaColor and Shape:White To Off-White SolidMolecular weight:696.81 2*22.99Ticarcillin Sodium EP Impurity A Sodium Salt
CAS:Formula:C14H15N2O4S2·NaMolecular weight:339.41 22.99Rifampicin Impurity 1 (Mixture of Z and E Isomers)
CAS:Formula:C44H52N4O13Color and Shape:Red SolidMolecular weight:844.92Posaconazole Impurity 55
CAS:Formula:C37H40F2N8O6Color and Shape:White To Off-White SolidMolecular weight:730.776-Methoxy Moxifloxacin
Formula:C21H25N3O4Color and Shape:White To Off-White SolidMolecular weight:383.45Cefpodoxime Proxetil EP Impurity D (Mixture of Diastereomers)
CAS:Formula:C21H27N5O9S2Molecular weight:557.59Aztreonam Impurity 6
Formula:C4H8N2O4SColor and Shape:White To Off-White SolidMolecular weight:180.18Epi Lovastatin
CAS:Controlled ProductImpurity Simvastatin EP Impurity F Applications Epi Lovastatin (Simvastatin EP Impurity F) is a Lovastatin impurity; an antihypercholesterolemic compound. References Hoffman, W.F., et al.: J. Med. Chem., 29, 849 (1986),Formula:C24H36O5Color and Shape:NeatMolecular weight:404.54Fosfomycin-Sucrose Ether Disodium Salt (Mixture of Diastereomers)
Formula:C15H27O15P·2NaMolecular weight:478.34 2*22.99Posaconazole Impurity 44
CAS:Formula:C35H40F2N8O4Color and Shape:Off-White SolidMolecular weight:674.74Cefixime EP Impurity A Disodium Salt (Mixture of Diastereomers)
CAS:Formula:C16H15N5O8S2·2NaMolecular weight:469.45 2*22.99Paromomycin Trisulfate (Neomycin Sulfate EP Impurity E Trisulfate)
CAS:Formula:C23H45N5O14·3H2SO4Molecular weight:615.63 3*98.07Posaconazole Impurity 23 DiHCl
CAS:Formula:C23H29N5O3·2HClColor and Shape:Off-White SolidMolecular weight:423.52 2*36.46Terbinafine Impurity 8
Formula:C27H39NColor and Shape:White To Off-White SolidMolecular weight:377.62Oxytetracycline Hydrochloride
CAS:Dalimycin (Oxytetracycline Hydrochloride), from Streptomyces rimosus, blocks tRNA binding, hindering protein synthesis.Formula:C22H25ClN2O9Purity:96.68%Color and Shape:Yellow Crystalline SolidMolecular weight:496.89Dicloxacillin Sodium EP Impurity B (Mixture of Diastereomers)
Formula:C18H19Cl2N3O4SColor and Shape:White To Off-White SolidMolecular weight:444.33Ciprofloxacin EP Impurity B HCl
CAS:Formula:C17H19N3O3·HClColor and Shape:Yellow SolidMolecular weight:313.36 36.463-Aminorifamycin S (Technical Grade)
CAS:Formula:C37H46N2O12Color and Shape:NeatMolecular weight:710.77Dihydropenicillin F Potassium Salt
CAS:Formula:C14H21N2O4S·KColor and Shape:White To Off-White SolidMolecular weight:313.40 39.10Faropenem Impurity 17 Sodium Salt
CAS:Formula:C12H14NO5S·NaColor and Shape:Yellow SolidMolecular weight:284.31 22.99N-Nitroso Desmethyl Minocycline 2 Trifluoroacetate
Formula:C22H24N4O8·C2HF3O2Molecular weight:472.45 114.02Potassium Clavulanate EP Impurity M DiHCl
CAS:Formula:C8H20N2O·2HClColor and Shape:White To Off-White SolidMolecular weight:160.26 2*36.46Amoxicillin sodium (Amox)
CAS:Controlled ProductApplications Amoxicillin sodium (Amox) (cas# 34642-77-8) is a useful research chemical.Formula:C16H18N3O5S·NaColor and Shape:White PowderMolecular weight:387.39Amikacin sulfate
CAS:Amikacin sulfate is a broad-spectrum antibiotic derived from KANAMYCIN. It is reno- and ototoxic like the other aminoglycoside antibiotics.Formula:C22H43N5O13H2O4SPurity:99.86%Color and Shape:White Or Off-White Crystalline PowderMolecular weight:762.03Oxacyclohexane open ring tacrolimus
CAS:Please enquire for more information about Oxacyclohexane open ring tacrolimus including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C44H71NO13Purity:Min. 95%Molecular weight:822.04 g/mol
