[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][C][=Branch1][=Branch2][=N][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless liquid. Less dense than water and insoluble in water. Hence floats on water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion. Used to make other chemicals."}]