5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-(((1-(carboxymethyl)-1H-tetrazol-5-yl)thio)methyl)-7-(((((6,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl)carbonyl)amino)(4-hydroxyphenyl)acetyl)amino)-8-oxo-, disodium salt, (6R-(6alpha,7beta(R*)))- 77768-57-1 E 0702 E-0702