(6R-trans)-7-Amino-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid 24209-38-9 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-amino-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-, (6R-trans)- EINECS 246-078-1