SMILES: C(C(=O)C(=O)[O-])(C(=O)[O-])O
Description: The molecule is a dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 2-hydroxy-3-oxosuccinic acid; major species at pH 7.3. It is a dicarboxylic acid dianion, an oxo carboxylic acid anion and a C4-dicarboxylate. It is a conjugate base of a 2-hydroxy-3-oxosuccinic acid.