[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=Branch1][C][=O][C][Ring1][Branch2][=O]"}, {"from": "gpt", "value": "The molecule appears as golden yellow needles or brown powder. Decomposes to a bluish-black color on standing. "}]