[{"from": "human", "value": "Describe this molecule. [C][N+1][Branch1][C][C][Branch1][C][C][C][C][C][C][C][C][C][C][C][C][N+1][Branch1][C][C][Branch1][C][C][C].[Br-1].[Br-1]"}, {"from": "gpt", "value": "Crystals derived from methanol and acetone. "}]