[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a member of the class of furans that is furan in which the hydrogen at position 2 is replaced by a hexyl group. It has a role as a flavouring agent, a mammalian metabolite, a human metabolite and a volatile oil component."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][=C][C][=C][O][Ring1][Branch1]"}]