[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch1][=Branch1][C][Branch1][C][Cl][Cl][Branch1][C][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a chlorinated derivative of ethane. It has the highest solvent power of any chlorinated hydrocarbon. As a refrigerant, it is used under the name R-130. It was once widely used as a solvent and as an intermediate in the industrial production of trichloroethylene, tetrachloroethylene, and 1,2-dichloroethylene. 1,1,2,2-Tetrachloroethane was also used to separate fats and oils from other substances, to clean and degrease metals, and in paints and pesticides. However, 1,1,2,2-tetrachloroethane is no longer used much in the United States due to concerns about its toxicity. Less toxic chemicals are now available to replace this solvent, and largescale commercial production has stopped, although some production still occurs (L336, L338)."}]