[{"from": "human", "value": "Describe this molecule. [C][/C][=Branch1][=Branch1][=C][\\C][=C][\\C][=O][/C][=C][/C][=O]"}, {"from": "gpt", "value": "The molecule is a 1,8-dialdehyde compound having double bonds in the 2-, 4- and 6-positions and a methyl substituent at the 4-position. It is an enal, a dialdehyde and an apo carotenoid."}]