[{"from": "human", "value": "Provide a description of this molecule. [C][C][Branch1][C][C][C][=C][Branch2][Ring2][Ring2][C][=Branch2][Ring1][#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-1][O][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion resulting from the deprotonation of the carboxy group of carnosic acid. The major species at pH 7.3. It is an abietane diterpenoid, a carbotricyclic compound and a monocarboxylic acid anion. It is a conjugate base of a carnosic acid."}]