[{"from": "human", "value": "Could you provide a description of this molecule? [C@@H1][Branch2][Ring1][Branch1][C@@H1][C@@H1][Branch1][N][C@H1][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][=Branch1][O][O][C@@H1][Ring1][#Branch2][O][O]"}, {"from": "gpt", "value": "The molecule is a carbohydrate lactone obtained by intramolecular condensation of the 6-carboxy group with the 3-hydroxy group of alpha-mannofuranuronic acid. It has a role as a metabolite. It is a furofuran, a gamma-lactone and a carbohydrate lactone."}]