[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch2][Ring1][N][C@H1][Branch2][Ring1][#Branch1][C@H1][Branch2][Ring1][C][C@@H1][Branch1][=C][C@H1][Branch1][#Branch2][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O][O][O][O][O].[C][Branch2][Ring1][N][C@H1][Branch2][Ring1][#Branch1][C@H1][Branch2][Ring1][C][C@@H1][Branch1][=C][C@H1][Branch1][#Branch2][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O][O][O][O][O].[Ca+2]"}, {"from": "gpt", "value": "The molecule is the calcium salt of (2xi)-D-gluco-heptonic acid. It is used as a calcium supplement for treatment of hypocalcaemia. It contains a (2xi)-D-gluco-heptonate."}]