[{"from": "human", "value": "Describe this molecule. [C][C][=C][Branch1][=N][C][Branch1][=Branch1][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=C][C][=Branch1][O][=C][C][=C][C][=Branch1][Ring2][=C][C][=O][C][C]"}, {"from": "gpt", "value": "The molecule is an enal that consists of 3,7-dimethyl-9-nona-2,4,6,8-tetraenal (double bond geometry unspecified) carrying a 2,6,6-trimethylcyclohex-1-en-1-yl group at the 9-position. It has a role as a human metabolite. It is a member of retinals and an enal."}]