[{"from": "human", "value": "What can you tell me about this molecule? [C][=Branch1][C][=O][Branch1][C][O-1][P][=Branch1][C][=O][Branch1][C][O-1][O-1]"}, {"from": "gpt", "value": "The molecule is the trianion resulting from the removal of three protons from phosphonoformic acid. It is a conjugate base of a phosphonoformic acid and a phosphonoformate(2-)."}]