Synonyms: Pyridinium,1-[[(6R,7R)-2-carboxy-7-[[(2R)-[[(5-carboxy-1H-imidazol-4-yl)carbonyl]amino]phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-4-(2-sulfoethyl)-,inner salt (9CI);Pyridinium, 1-[[2-carboxy-7-[[[[(5-carboxy-1H-imidazol-4-yl)carbonyl]amino]phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-4-(2-sulfoethyl)-,inner salt, [6R-[6a,7b(R*)]]-;Cefpimizole;U 63196;