[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=C][Ring1][#Branch1][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule appears as a yellow crystalline solid. Insoluble in water and denser than water. May irritate skin and eyes. Readily ignitable and may be difficult to extinguish once ignited. Used to make dyes and other chemicals."}]