[{"from": "human", "value": "Please give me some details about this molecule. [C][O][C][=Branch1][C][=O][C][/C][=Branch1][#Branch1][=C][\\C][=Branch1][C][=O][O][/C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the 2-(methoxycarbonylmethyl) derivative of fumaric acid. It is a dicarboxylic acid, a methyl ester and a fatty acid methyl ester. It is functionally related to a fumaric acid. It is a conjugate acid of a (2E)-2-(methoxycarbonylmethyl)but-2-enedioate(2-)."}]