SMILES: C1=CC=C(C(=C1)/C=C\\C(=O)C(=O)[O-])C(=O)[O-]
Description: The molecule is dicarboxylate anion of (3Z)-4-(2-carboxyphenyl)-2-oxobut-3-enoic acid. It is a dicarboxylic acid dianion and an oxo carboxylic acid anion. It is a conjugate base of a (3Z)-4-(2-carboxyphenyl)-2-oxobut-3-enoic acid.