5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)(methoxyimino)acetyl)amino)-8-oxo-3-((tetrazolo(1,5-b)pyridazin-6-ylthio)methyl)-, (6R-(6alpha,7beta(Z)))- 7beta-((Z)-2-(2-Amino-4-thiazolyl-N-oxide)-2-methoxyiminoacetamido)-3-(tetrazolo-(1,5-b)pyridazin-6-yl)thiomethyl-3-cephem-4-carboxylic acid 96124-70-8 Fce 20635 Fce-20635