[{"from": "human", "value": "Generate a molecule based on the given description. The molecule appears as needles or grayish-white powder. "}, {"from": "gpt", "value": "[C][N][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]