SMILES: CC(CC(=O)C(=O)[O-])(C(=O)[O-])O
Description: The molecule is the dicarboxylic acid dianion resulting from deprotonation of both carboxy groups of 4-hydroxy-4-methyl-2-oxoglutaric acid; major species at pH 7.3. It is a dicarboxylic acid dianion and an oxo carboxylic acid anion. It is a conjugate base of a 4-hydroxy-4-methyl-2-oxoglutaric acid.