[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a colorless gas at room temperature and pressure. It has a characteristically sharp smell. It is a liquid when stored in pressurized containers; however, the liquid evaporates quickly when exposed to room air. Chloroethane catches fire easily. It was used in leaded gasoline, but strict new government regulations have reduced that use dramatically. It is used in the production of cellulose, dyes, medicinal drugs, and other commercial products, and as a solvent and refrigerant. It is also used to numb the skin before medical procedures such as ear piercing and skin biopsies and as a treatment in sports injuries."}]