[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][O][C][Branch1][=Branch1][/C][=C][/C][O][C][O][C]"}, {"from": "gpt", "value": "The molecule is an olefinic compound that is but-2-en-1-yl acetate substituted by methoxy groups at positions 1 and 4 respectively. It has a role as a metabolite. It is an acetate ester, an ether and an olefinic compound."}]