[{"from": "human", "value": "Describe this molecule. [C][Branch2][Branch1][=Branch1][C@@H1][C@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][N][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][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a heparin disaccharide that is 6-O-sulfo-alpha-D-glucosamine in which the hydroxy group at position 4 has been glycosylated by 2-O-sulfo-alpha-L-idopyranuronic acid. Sequence: IdoA(2-OSO3)-GlcN(6-OSO3). It is a heparin disaccharide, an oligosaccharide sulfate and an amino disaccharide."}]