[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule appears as white to light yellow crystals or powder. Becomes anhydrous with reddening at 257-266 \u00b0F. "}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][Branch1][Branch1][C][Ring1][#Branch1][=O][Branch1][C][O][O]"}]