Synonyms: 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid, 8-oxo-7-[(2-thienylacetyl)amino]-3-[(1H-1,2,4-triazol-3-ylthio)methyl]-,(6R,7R)- (9CI); 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,8-oxo-7-[(2-thienylacetyl)amino]-3-[(1H-1,2,4-triazol-3-ylthio)methyl]-,(6R-trans)-; Cefetrizole