C2H2Cl2, commonly known as dichloroethene, is a chemical compound consisting of two carbon atoms, two hydrogen atoms, and two chlorine atoms. It is a colorless liquid with a sweet odor and is primarily used in industrial applications, including the production of solvents and plastics. This compound exists in two isomeric forms: cis-dichloroethene and trans-dichloroethene, which differ in the arrangement of chlorine atoms around the carbon-carbon double bond. C2H2Cl2 is also important in the synthesis of other chemicals and can be found in some household products, although its use is regulated due to potential health risks.