[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch2][Branch1][Ring2][C@@H1][C@H1][Branch2][Ring2][=C][C@@H1][Branch1][=Branch2][C@@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a glycosyl alditol derivative consisting of 2-O-sulfo-beta-D-glucopyranuronic acid and 2,5-anhydro-D-glucitol joined in sequence by a (1->3) glycosidic bond. It is an oligosaccharide sulfate, a monocarboxylic acid and a glycosyl alditol derivative."}]