(6R,7R)-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-3-(1,3,4-thiadiazol-2-ylsulfanylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-8-oxo-7-[[1-oxo-2-(1-tetrazolyl)ethyl]amino]-3-[(1,3,4-thiadiazol-2-ylthio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-8-keto-7-[[2-(tetrazol-1-yl)acetyl]amino]-3-[(1,3,4-thiadiazol-2-ylthio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-8-oxo-7-[2-(1,2,3,4-tetrazol-1-yl)ethanoylamino]-3-(1,3,4-thiadiazol-2-ylsulfanylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6R,7R)-8-Oxo-7-(2-(1H-tetrazol-1-yl)acetamido)-3-((1,3,4-thiadiazol-2-ylthio)methyl)-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid CG-B 3 Q Ceftezol Ceftezol [INN-Spanish] Ceftezole Ceftezole [INN] Ceftezolum [INN-Latin] (6R,7R)-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-3-[(1,3,4-thiadiazol-2-ylthio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid