[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][C][C][Ring1][Ring1][C][C][Branch1][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 alpha-mycolic acid type-1 (II). A class of mycolic acids characterized by the presence of a proximal trans and a distal cis cyclopropyl group in the meromycolic chain."}]