[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][Ring2][Branch2][C@@H1][Branch1][O][C@H1][Branch1][=Branch1][O][C@@H1][Ring1][=Branch1][O][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][O]"}, {"from": "gpt", "value": "The molecule is a heparin disaccharide that is N-acetyl-alpha-D-glucosamine in which the hydroxy group at position 4 has been glycosylated by alpha-L-idopyranuronic acid. Sequence: IdoA-GlcNAc It is a heparin disaccharide, an amino disaccharide and an oligosaccharide sulfate."}]