[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][O][C][=Branch1][C][=O][C][Branch1][C][C][/C][=C][\\C]"}, {"from": "gpt", "value": "The molecule is an ethyl 2-methyl-3-pentenoate in which the double bond adopts a cis-configuration."}]