SMILES: [C@@H]1([C@@H]([C@H](O[C@H]([C@@H]1O)O[C@@H]2[C@H]([C@@H]([C@H](O[C@H]2O)C(=O)[O-])O)O)C(=O)[O-])O)O
Description: The molecule is a carbohydrate acid anion arising from deprotonation of both carboxy groups of 2-(beta-D-glucopyranosyluronic acid)-D-glucuronic acid; major species at pH 7.3. It is a carbohydrate acid anion and a dicarboxylic acid dianion. It is a conjugate base of a 2-(beta-D-glucopyranosyluronic acid)-D-glucuronic acid.