[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as odorless white crystals. Sinks and mixes with water. (USCG, 1999)"}, {"from": "gpt", "value": "[B-1][Branch1][C][F][Branch1][C][F][Branch1][C][F][F].[NH4+1]"}]