5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-(aminomethyl)phenyl)acetyl)amino)-3-(((1,6-dihydro-6-oxo-3-pyridazinyl)thio)methyl)-8-oxo-, (6R-trans)- 52786-87-5 7-(o-Aminomethylphenylacetamido)-3-(6-hydroxypyridazin-3-ylthiomethyl)-3-cephem-4-carboxylic acid BB-S 150 BB-S-150