[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C@H1][Branch1][C][C][C][=Branch1][C][=O][C][/C][=C][\\C][C][C][C][Ring1][Ring1][C][C@H1][Branch1][O][C@@H1][Branch1][Ring1][C][C][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is the conjugate base of ketomycolic acid type-3 (XIII''). A class of mycolic acids characterized by the presence of a proximal cis-cyclopropyl group followed by a cis C=C double bond and a distal oxo group in the meromycolic chain."}]