CHCl3, commonly known as chloroform, is a colorless, dense liquid with a sweet smell. It is primarily used as a solvent in laboratories and in the production of various chemicals. Chloroform is also known for its historical use as an anesthetic, although this practice has largely been discontinued due to safety concerns. Chloroform is produced through the chlorination of methane and can be found in small amounts in the environment. It is important to handle chloroform with care, as it can be harmful if inhaled or ingested, and prolonged exposure may lead to serious health issues.