Synonyms: 4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylicacid, 6-[(1-methyl-1H-1,2,3-triazol-4-yl)methylene]-7-oxo-, sodium salt,(5R,6Z)- (9CI); 4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1-methyl-1H-1,2,3-triazol-4-yl)methylene]-7-oxo-, sodium salt, [R-(Z)]-;1H-1,2,3-Triazole, 4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acidderiv.; BRL 42715