SMILES: C1=C(O[C@H]([C@@H]([C@H]1O)O)O[C@@H]2[C@@H]([C@H](C(O[C@@H]2C(=O)[O-])O)O)O)C(=O)[O-]
Description: The molecule is dianion of 4-(4-deoxy-beta-D-gluc-4-enosyluronic acid)-D-galacturonic acid arising from deprotonation of both carboxy groups. It is a carbohydrate acid anion and a dicarboxylic acid dianion. It is a conjugate base of a 4-(4-deoxy-beta-D-gluc-4-enosyluronic acid)-D-galacturonic acid.