[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][Branch1][=C][C][=C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a norlignan that is pentane-1,4-diene in which a hydrogen at position 1 and a hydrogen at position 3 are replaced by p-hydroxyphenyl groups. The isomer in which the 1,2-disubstituted double bond has Z configuration is known as nyasol; the corresponding E isomer is hinokiresinol. It has a role as a plant metabolite. It is a norlignan, a polyphenol and an olefinic compound."}]