SMILES: C1=C(C(=C[C@@H]([C@@H]1O)O)C(=O)[O-])C(=O)[O-]
Description: The molecule is a dicarboxylic acid dianion arising from deprotonation of the carboxy groups of cis-4,5-dihydroxycyclohexa-2,6-diene-1,2-dicarboxylic acid; major species at pH 7.3. It is a dicarboxylic acid dianion and a hydroxy monocarboxylic acid anion. It is a conjugate base of a cis-4,5-dihydroxycyclohexa-2,6-diene-1,2-dicarboxylic acid.