[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule appears as white or almost-white crystalline powder. Almost odorless. Tasteless. "}, {"from": "gpt", "value": "[C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N]"}]