Synonyms: 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid,3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-7-[[[(trifluoromethyl)thio]acetyl]amino]-,monosodium salt, (6R,7R)- (9CI); 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid,3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-7-[[[(trifluoromethyl)thio]acetyl]amino]-,monosodium salt, (6R-trans)-; Cefazaflur sodium; SKF 59962