107452-79-9 4-((((6R,7R)-7-(2-(2-Amino-4-thiazolyl)glyoxylamido)-2-carboxy-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-en-3-yl)methyl)thio)-1-methylpyridinium chloride 7,2-(Z)-(o-(1-carboxy-1-methylethyl)oxime) S-oxide. Cefmepidium chloride Cefmepidium chloride [INN]