[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][O][C][=Branch1][C][=O][/C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][O-1][/C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is dianion of (2E)-3-(methoxycarbonyl)pent-2-enedioic acid arising from deprotonation of both carboxylic acid functions. It has a role as a Saccharomyces cerevisiae metabolite. It is a conjugate base of a (2E)-3-(methoxycarbonyl)pent-2-enedioic acid."}]