[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a colorless to white crystalline powder. Mildly corrosive. Used as an herbicide."}, {"from": "gpt", "value": "[C][N][C].[C][O][C][=C][Branch1][#C][C][=C][C][=Branch1][=Branch2][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][Cl][Cl]"}]