(6R,7R)-8-Oxo-7-(2-(2-thienyl)acetamido)-3-((s-triazol-3-ylthio)methyl)-5-thia-1-azabicyclo(4.2.0)oct-2-en-2-carboxylic acid. 65307-12-2 Cefetrizole Cefetrizole [INN]