[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][=C][Branch2][Ring1][S][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][C@@H1][C@@][Ring1][#Branch1][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is an abietane diterpenoid that is abieta-8,11,13-trien-20-oic acid substituted by a hydroxy group at position 12. It has been isolated from the stem bark of Fraxinus sieboldiana. It has a role as a plant metabolite and an antibacterial agent. It is a tricyclic diterpenoid, a member of phenols, an abietane diterpenoid and a monocarboxylic acid. It is a conjugate acid of a (+)-pisiferate."}]