The molecule is dicarboxylate anion of (7R)-7-(4-carboxybutanamido)cephalosporanic acid. It is a dicarboxylic acid dianion and a cephalosporin carboxylic acid anion. It is a conjugate base of a (7R)-7-(4-carboxybutanamido)cephalosporanic acid.
(6R,7R)-3-(acetyloxymethyl)-7-(4-carboxylatobutanoylamino)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate