SMILES: CC(=O)N[C@@H]1[C@H]([C@@H]([C@H](O[C@H]1O)CO)O)O[C@H]2[C@@H]([C@H]([C@@H]([C@H](O2)C(=O)[O-])O)O)O
Description: The molecule is a carbohydrate acid derivative anion obtained by deprotonation of the carboxy groups of hyaluronic acid; major species at pH 7.3. It is a polyanionic polymer and a carbohydrate acid derivative anion. It is a conjugate base of a hyaluronic acid.