[{"from": "human", "value": "Describe this molecule. [C][Branch1][Branch2][/C][=C][/C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a pentenedioate that is the dianion obtained by the deprotonation of both the carboxy groups of glutaconic acid. It has a role as a human metabolite. It is a conjugate base of a glutaconate(1-)."}]