5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((((4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl)amino)(4-hydroxyphenyl)acetyl)amino)-8-oxo-3-((1,3,4-thiadiazol-2-ylthio)methyl)-, (6R-(6-alpha,7-beta(R*)))- 67474-96-8 BRN 0603066