Synonyms: 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid,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-,monosodium salt, (6R,7R)- (9CI);5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,7-[[[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino](4-hydroxyphenyl)acetyl]amino]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-,monosodium salt, [6R-[6a,7b(R*)]]-;Bioperazone;CP 52640-2;Cefobis;Cefogram;Cefomycin;Cefoneg;Cefoperazone sodium;Cefoperazone sodium salt;Cefosint;Dardum;Farecef;Kefazon;Myticef;Novobiocyl;Pathozone;Peracef;Sodium cefoperazone;