[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=Branch1][=N][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule appears as yellow to red solid or heated liquid with a slight odor. Solidifies in cool water. Solid and liquid sink in water. (USCG, 1999)"}]