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 6361 products of "Natural and semi-synthetic antibiotics"
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4-[4-(4-Nitrophenyl)-1-piperazinyl]phenol
CAS:Controlled Product<p>Applications 4-[4-(4-Nitrophenyl)-1-piperazinyl]phenol is a key intermediate in the synthesis of triazole medicines, such as itraconazole (I937500), which are used in curing deep department fungal infections. Inhibitor of endothelial cell proliferation.<br>References Ke, C. et al.: Adv. Nat. Sci., 2, 26 (2009); Shi, W. et al.: J. Med. Chem., 54, 7363 (2011);<br></p>Formula:C16H17N3O3Color and Shape:NeatMolecular weight:299.32Chloramphenicol stearate
CAS:<p>Chloramphenicol stearate is an antibiotic useful for the therapy of numbers of bacterial infections. This includes an eye ointment to treat conjunctivitis.</p>Formula:C29H46Cl2N2O6Purity:98%Color and Shape:SolidMolecular weight:589.59Caspofungin impurity A
CAS:<p>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.</p>Formula:C51H86N10O15Purity:Min. 95%Color and Shape:PowderMolecular weight:1,079.29 g/molChloramphenicol palmitate
CAS:<p>Chloramphenicol palmitate is a broad-spectrum antibiotic effective against various bacteria and used for bacterial selection in gene studies.</p>Formula:C27H42Cl2N2O6Purity:99.89%Color and Shape:Crystals Very Slightly Sol In WaterMolecular weight:561.54Ceftezole
CAS:<p>Ceftezole: alpha-glucosidase inhibitor, anti-diabetic, broad-spectrum antibiotic for gram-positive/negative bacteria.</p>Formula:C13H12N8O4S3Purity:98%Color and Shape:SolidMolecular weight:440.48L-(+)-Ampicillin
CAS:<p>L-(+)-Ampicillin is an isomer of Ampicillin. Ampicillin is a β-lactam antibiotic used for treating bacterial infections.</p>Formula:C16H19N3O4SPurity:98%Color and Shape:SolidMolecular weight:349.40N-Methyl DL-Pipecolic Acid
CAS:Controlled Product<p>Applications Pipecolic Acid (P479760) derivative. Found in wheat, rye and barley.<br></p>Formula:C7H13NO2Color and Shape:NeatMolecular weight:143.181-(4-Aza-8-hydroxy-6-oxo)oct-2-en-1-oylimidazole-d3 (mixture E/Z)
CAS:Controlled Product<p>Applications Clavulanic acid (C563750) impurity as a alkaline degradation product.<br>References Haginaka, J., et al.: Chem. Pharm. Bull., 31, 4436 (1983),<br></p>Formula:C10D3H10N3O3Color and Shape:NeatMolecular weight:226.25Epi Lovastatin
CAS:Controlled Product<p>Impurity Simvastatin EP Impurity F<br>Applications Epi Lovastatin (Simvastatin EP Impurity F) is a Lovastatin impurity; an antihypercholesterolemic compound.<br>References Hoffman, W.F., et al.: J. Med. Chem., 29, 849 (1986),<br></p>Formula:C24H36O5Color and Shape:NeatMolecular weight:404.544-(Chloromethyl)-2,5-oxazolidinedione
CAS:Controlled Product<p>Applications Intermediate in the preparation of Cycloserine (C988800).<br></p>Formula:C4H4ClNO3Color and Shape:NeatMolecular weight:149.53Cefixime Ethyl Ester Sodium Salt (Cefixime EP Impurity F)
CAS:Controlled Product<p>Impurity Cefixime EP Impurity F<br>Applications Cefixime Ethyl Ester is an ester impurity of the third generation cephalosporin antibiotic, Cefixime (C242800).<br>References Bian, L. et al.: Yao. Fen. Zaz., 30, 872 (2010);<br></p>Formula:C18H18N5NaO7S2Color and Shape:NeatMolecular weight:503.48Cefmetazole Lactone (~90%)
CAS:Controlled Product<p>Applications Cefmetazole Lactone is an impurity of cefmetazole (C242850), which is a semi-synthetic antibiotic derived from Cephamycin. Antibacterial.<br>References Nakao, H., et al.: J. Antibiot., 29, 554 (1976), Iwata, M., et al.: Jpn. J. Exp. Med., 48, 401 (1978), Shindo, H., et al.: Chemoterapy, 27, 64 (1979), Nishida, M., et al.: J. Antibiot., 32, 1319 (1979),<br></p>Formula:C13H13N3O5S2Purity:~90%Color and Shape:NeatMolecular weight:355.39Deacetyl Linezolid Thioacetamide
CAS:<p>Impurity Linezolid USP Related Compound B<br>Applications Deacetyl Linezolid Thioacetamide is an impurity of Linezolid (L466500), an oxazolidinone antimicrobial which inhibits bacterial mRNA translation. Linezolid USP Related Compound B.<br>References Brickner, S.J., et al.: J. Med. Chem., 39, 673 (1996); Ford, C.W., et al.: Antimicrob. Agents Chemother., 40, 1508 (1996); Rybak, M.J., et al.: Pharmacotherapy, 18, 456 (1998); Stevens, D.L., et al.: Clin. Infect. Dis., 34, 1481 (2002);<br></p>Formula:C16H20FN3O3SColor and Shape:NeatMolecular weight:353.41δ2-Cefotetan
CAS:Controlled Product<p>Applications The Δ2-isomer of Cefotean (C242970). It is useful as intermediate in the preparation of cephalesorin compounds.<br>References Sugioka, T., et al.: Chem. Pharm. Bull., 38, 1998 (1990),<br></p>Formula:C17H17N7O8S4Color and Shape:NeatMolecular weight:575.622-Chloroethoxy Roxithromycin
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications 2-Chloroethoxy Roxithromycin is an impurity of Roxithromycin (R700850); a semisynthetic Erythromycin (E649950) derivative and antibacterial.<br>References Jones, R.N., et al.: Antimicrob. Agents Chemother., 24, 209 (1983); Barry, A.L., et al.: Eur. J. Clin. Microbiol., 5, 536 (1986); Grassi, C., et al.: Chemioterapia, 6, 41 (1987); Gasc, J.C., et al.: J. Antibiot., 44, 313 (1991);<br></p>Formula:C40H73ClN2O14Color and Shape:NeatMolecular weight:841.47Decarboxy Ciprofloxacin
CAS:Controlled Product<p>Impurity Ciprofloxacin Impurity E<br>Applications Ciprofloxacin impurity. Ciprofloxacin Impurity E<br>References Borner, K, et al.: J. Clin. Chem. Clin. Biochem., 24, 325 (1986), Lacroix, P., et al.: J. Pharm. Biomed. Anal., 14, 641 (1996), Barron, D., et al.: Anal. Chim. Acta, 415, 83 (2000,<br></p>Formula:C16H18FN3OColor and Shape:NeatMolecular weight:287.333,6-Methylene-2,5-piperazinedione
CAS:Controlled Product<p>Applications 3,6-Methylene-2,5-piperazinedione is an impurity of Cycloserine (C988800), an antibacterial agent.<br>References Ajo, D., et al.: J. Molec. Structure.,141, 415 (1986); Gentry-Weeks, C., et al.: J. Biol. Chem., 268, 7298 (1993); Alexander, F., et al.: Eur. J. Biochem., 219, 953 (1994); Auger, S., et al.: Biochimie, 87, 231 (2005)<br></p>Formula:C6H6N2O2Color and Shape:NeatMolecular weight:138.12Ceftazidime Methyl Ester (>85%)
CAS:Controlled Product<p>Impurity Ceftazidime EP Impurity H<br>Applications Ceftazidime Methyl Ester (Ceftazidime EP Impurity H) is an impurity of Ceftazidime (C244100). Ceftazidime impurity G.<br>References Miyake, A., et al.: Antimicrob. Agents Chemother., 486, 182 (1989), Seibert, G., et al.: Arzneim.-Forsch., 33, 1084 (1983),<br></p>Formula:C23H24N6O7S2Purity:>85%Color and Shape:NeatMolecular weight:560.6020’-Keto Doramectin
CAS:Controlled ProductFormula:C50H72O14Color and Shape:NeatMolecular weight:897.10Isopenicillin F
CAS:Controlled ProductFormula:C14H19N2O4S·KColor and Shape:NeatMolecular weight:312.3846
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