(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 26973-24-0 41136-22-5 CG-B 3 Q Ceftezol Ceftezol [INN-Spanish] Ceftezole Ceftezole [INN] Ceftezolum [INN-Latin]