SMILES: CC(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@H]1O)COS(=O)(=O)[O-])OS(=O)(=O)[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 polysaccharide acid oxoanion arising from global deprotonation of the carboxylic and sulfonic acid groups of the repeating units in chondroitin 4',6'-disulfate; major species at pH 7.3. It derives from a chondroitin 6'-sulfate anion and a chondroitin 4'-sulfate anion.