5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((amino(3-chloro-4-hydroxyphenyl)acetyl)amino)-3-(methylthio)-8-oxo-, (6R-(6-alpha,7-beta(R*)))- 7-(R-2-Amino-2-(3-chloro-4-hydroxyphenyl)acetamido)-3-methylthio-3-cephem-4-carboxylic acid 87950-82-1