[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=C][Branch1][Ring2][O][Ring1][Branch1][S][C]"}, {"from": "gpt", "value": "The molecule is a member of the class of furans that is furan substituted by methyl and methylsulfanyl groups at positions 2 and 5, respectively. It is a metabolite found in coffee and human urine. It has a role as a flavouring agent, a human urinary metabolite and a plant metabolite. It is a member of furans and a methyl sulfide."}]