[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][/C][=C][/C][=C][/C][=O]"}, {"from": "gpt", "value": "The molecule is a polyunsaturated fatty aldehyde that is decanal which has undergone formal dehydrogenation to introduce trans- double bonds at the 2-3 and 4-5 positions. A product of lipid peroxidation in cell membranes and a component of cooking oil fumes. It has a role as a nematicide and an apoptosis inducer."}]