[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O].[C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O].[Ca+2].[Ca+2].[Ca+2]"}, {"from": "gpt", "value": "The molecule is a salt typically used as a source of calcium in a variety of over the counter supplements."}]