[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a white powder. Sinks and mixes slowly with water. (USCG, 1999)"}, {"from": "gpt", "value": "[C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][=C][C][=Branch1][#Branch2][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][Cl][Cl][Cl]"}]