[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1].[NH4+1]"}, {"from": "gpt", "value": "The molecule appears as white to yellow paste or liquid with a weak ammonia odor. May float or sink in water. (USCG, 1999)"}]