SMILES: C(=O)(C(=O)[O-])O
Description: The molecule is a dicarboxylic acid monoanion that is the conjugate base of oxalic acid. It has a role as a human metabolite and a plant metabolite. It is a dicarboxylic acid monoanion and an oxalate. It is a conjugate base of an oxalic acid. It is a conjugate acid of an oxalate(2-).