(6R,7R)-7-(R)-Mandelamido-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-carboxylic acid 34444-01-4 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((hydroxyphenylacetyl)amino)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-, (6R-(6alpha,7beta(R*)))- 7-D-Mandelamido-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-3-cephem-4-carboxylic