SMILES: CC1=C(C(=C(N1)CC2=C(C(=CN2)CCC(=O)[O-])CC(=O)[O-])CCC(=O)[O-])CC(=O)[O-]
Description: The molecule is tetracarboxylate anion of dipyrromethane cofactor; major species at pH 7.3. It has a role as a cofactor. It is a conjugate base of a dipyrromethane cofactor.