[{"from": "human", "value": "What can you tell me about this molecule? [C][=Branch1][C][=O][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid monoanion that is the conjugate base of oxalic acid. It has a role as a human metabolite and a plant metabolite. It is a dicarboxylic acid monoanion and an oxalate. It is a conjugate base of an oxalic acid. It is a conjugate acid of an oxalate(2-)."}]