[{"from": "human", "value": "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 manufactured, colorless, dense liquid that does not burn easily. It is volatile and has a sweet odor. In the past, it was used in large amounts to produce other chemicals, as an industrial solvent to clean and degrease metals, and as an ingredient in paints and pesticides. Commercial production of 1,1,2,2-tetrachloroethane for these uses has stopped in the United States. It presently is used only as a chemical intermediate in the production of other chemicals."}]