[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch2][Ring1][Ring1][C][P][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][C][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a tertiary phosphine in which phosphane is substituted with three 2-carboxyethyl groups. It is a commonly used reducing agent. It has a role as a reducing agent. It is a tricarboxylic acid and a phosphine derivative."}]