7-((z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido)-3-(E)-3-(E)-(1-carbamoyl-1-propene-3-yl) ((3-ethylmethylammonio)-1-propene- 1-yl)-3-cepheme-4-carboxylate
7-((z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido)-3-(e)-3-(e)-(1-carbamoyl-1-propene-3-yl) ((3-ethylmethylammonio)-1-propene- 1-yl)-3-cepheme-4-carboxylate