[{"from": "human", "value": "Provide a description of this molecule. [C][C][N+1][Branch1][Ring1][C][C][Branch1][Ring1][C][C][C][C][O][C][=Branch1][C][=O][C][Branch1][Branch2][C][C][C][C][C][Ring1][Branch1][C][C][C][C][C][Ring1][Branch1].[Br-1]"}, {"from": "gpt", "value": "The molecule is a quaternary ammonium salt."}]