[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][C][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][#Branch2][=O][C][=C][C][=C][Ring1][Branch2][O]"}, {"from": "gpt", "value": "The molecule appears as golden yellow plates or brown powder. Melting point 196 \u00b0C. Slightly soluble in water. Pale yellow aqueous solutions turn red on addition of alkali. Solutions in concentrated sulfuric acid are red. "}]