[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as white crystals or crystalline powder. "}, {"from": "gpt", "value": "[C][=C][Branch1][O][N][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][C][=Branch1][C][=O][O]"}]