| Title:  Cefoperazone CAS Registry Number:  62893-19-0 CAS Name:  (6R,7R)-7-[[(2R)-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino](4-hydroxyphenyl)acetyl]amino]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Additional Names:  7-[D-(-)-a-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-a-(4-hydroxyphenyl)acetamido]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-3-cephem-4-carboxylic acid Molecular Formula:  C25H27N9O8S2 Molecular Weight:  645.67 Percent Composition:  C 46.50%, H 4.21%, N 19.52%, O 19.82%, S 9.93% Literature References:  Broad spectrum third generation cephalosporin antibiotic.  Prepn:  I. Saikawa et al., BE 837682; eidem, US 4410522 (1976, 1983 both to Toyama); eidem, Yakugaku Zasshi 99, 929 (1979).  Stability in aq soln:  eidem, ibid. 1207.  In vitro activity:  M. V. Borobio et al., Antimicrob. Agents Chemother. 17, 129 (1980).  Kinetics in rats:  J. Fabre et al., Schweiz. Med. Wochenschr. 110, 264 (1980); in humans:  A. F. Allaz, ibid. 109, 1999 (1979).  Review of pharmacology and therapeutic efficacy:  R. N. Brogden et al., Drugs 22, 423-460 (1981).  Symposium on clinical studies:  ibid. Suppl. 1, 1-124. Properties:  Crystals from acetonitrile/water, mp 169-171° (hydrated).  Stable at pH 4.0-7.0; slightly unstable in acid; highly unstable in alkaline soln. Melting point:  mp 169-171° (hydrated)   Derivative Type:  Sodium salt  CAS Registry Number:  62893-20-3 Manufacturers' Codes:  CP-52640-2;  T-1551 Trademarks:  Bioperazone (Biopharma);  Cefazone (Firma);  Cefobid (Pfizer);  Cefobine (Pfizer);  Cefobis (Pfizer);  Cefogram (Metapharma);  Cefoneg (Tosi);  Cefosint (Proter);  Dardum (Lisapharma);  Farecef (Lafare);  Kefazon (Esseti);  Novobiocyl (Francia);  Pathozone (Pfizer);  Peracef (Pfizer);  Perocef (Pulitzer);  Tomabef (Aandersen) Molecular Formula:  C25H26N9NaO8S2 Molecular Weight:  667.65 Percent Composition:  C 44.97%, H 3.93%, N 18.88%, Na 3.44%, O 19.17%, S 9.61%   Therap-Cat:  Antibacterial. Therap-Cat-Vet:  Antibacterial. Keywords:  Antibacterial (Antibiotics); ?Lactams; Cephalosporins.  |