[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=Branch1][C][=O][O-1].[C][C][=Branch1][C][=O][O-1].[Ca+2]"}, {"from": "gpt", "value": "The molecule is the calcium salt of acetic acid. It is used, commonly as a hydrate, to treat hyperphosphataemia (excess phosphate in the blood) in patients with kidney disease: the calcium ion combines with dietary phosphate to form (insoluble) calcium phosphate, which is excreted in the faeces. It has a role as a chelator. It contains an acetate."}]