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.
3-[5-[[3-(2-carboxylatoethyl)-4-(carboxylatomethyl)-5-methyl-1H-pyrrol-2-yl]methyl]-4-(carboxylatomethyl)-1H-pyrrol-3-yl]propanoate