SMILES: CC(CC(=O)O[C@@H]1[C@H]([C@@H](O[C@H]2[C@@H]1O[C@](OC2)(C)C(=O)[O-])O[C@@H]3[C@H]([C@@H](O[C@H]4[C@H]3O[C@@](OC4)(C)C(=O)[O-])O[C@@H]5[C@H](O[C@H]([C@@H]([C@H]5O)O)O[C@@H]6[C@H](O[C@H]([C@@H]([C@H]6O)O)OC[C@@H]7[C@H]([C@@H]([C@H]([C@H](O7)O)OC(=O)C)O)O[C@H]8[C@@H]([C@H]([C@@H]([C@H](O8)CO)O[C@H]9[C@@H]([C@H]([C@@H]([C@H](O9)C(=O)[O-])O[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)C(=O)[O-])O)O)O)O)OC(=O)C)O)O)CO)CO)O)O)O
Description: The molecule is a branched polysaccharide acid oxoanion comprised of an octasaccharide repeating unit consisting of a backbone of two glucose and two glucuronic acid residues, and a side chain of three glucose and one galactose residues. The octasaccharide is modified by two pyruvyl and two non-stoichiometric O-acetyl groups, and one non-stoichiometric hydroxybutanoyl group. Note thet the structure shown and its molfile represent only one of the possible substitution patterns.