[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is dicarboxylate anion of 2-isopropylmaleic acid; major species at pH 7.3. It has a role as a Saccharomyces cerevisiae metabolite. It is a conjugate base of a 2-isopropylmaleic acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][/C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][O-1][/C][=Branch1][C][=O][O-1]"}]