7-(2-(2-amino-4-thiazolyl)-2-((carboxy(3,4-dihydroxyphenyl)methyl)oxyimino)acetamido)-3-(1-methylaminopyridinium-4-thiomethyl)ceph-3-em-4-carboxylate
7-(2-(2-amino-4-thiazolyl)-2-((carboxy(3,4-dihydroxyphenyl)methyl)oxyimino)acetamido)-3-(1-methylaminopyridinium-4-thiomethyl)ceph-3-em-4-carboxylate