[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as golden yellow needles or brown powder. Decomposes to a bluish-black color on standing. "}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=Branch1][C][=O][C][Ring1][Branch2][=O]"}]