[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][C][C][=C][C][=C][O][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a member of the class of furans that is furan substituted by an octyl group at position 2. It has a role as a flavouring agent, a plant metabolite, a Maillard reaction product and a mammalian metabolite."}]