[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Branch1][Ring1][C@@H1][C@@H1][Branch2][Ring2][=N][C@@H1][Branch2][Ring1][S][C@H1][Branch2][Ring1][O][C][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch1][=C][O][C][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a disaccharide derivative that is 4-O-(D-galactopyranosyl)-D-glucopyranose in which the hydroxy group at position 2 of the galactopyranose moiety has been converted into the corresponding hydrogen sulfate derivative. It is a disaccharide derivative, a partially-defined glycan and an oligosaccharide sulfate."}]