The molecule is dicarboxylate anion of (7R)-7-(5-carboxy-5-oxopentanamido)cephalosporanate acid. It is a cephalosporin carboxylic acid anion and a dicarboxylic acid dianion. It is a conjugate base of a (7R)-7-(5-carboxy-5-oxopentanamido)cephalosporanic acid.
(6R,7R)-3-(acetyloxymethyl)-7-[(5-carboxylato-5-oxopentanoyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate