[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][C][C][C@@H1][C@][Ring1][Branch1][C][C][Branch1][=C][C][C@H1][Ring1][Branch1][C][=C][Ring1][Branch2][C][=Branch1][C][=O][O][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a tricyclic sesquiterpenoid that is pentalenene in which the 13-methyl group is oxidsed to the carboxylic acid. It has a role as a metabolite. It is a sesquiterpenoid, a carbotricyclic compound and an alpha,beta-unsaturated monocarboxylic acid. It is functionally related to a pentalenene. It is a conjugate acid of a 1-deoxypentalenate."}]