7 beta-((Z)-2-(2-amino-4-thiazolyl-N-oxide)-2-methoxyiminoacetamido)-3-(tetrazolo-(1,5-b)pyridazin-6-yl)thiomethyl-3-cephem-4-carboxylic acid
7 beta-((z)-2-(2-amino-4-thiazolyl-n-oxide)-2-methoxyiminoacetamido)-3-(tetrazolo-(1,5-b)pyridazin-6-yl)thiomethyl-3-cephem-4-carboxylic acid