Used primarily as a chemical intermediate in the production of vinyl chloride monomer, which is essential for manufacturing polyvinyl chloride (PVC) plastics. It serves as a solvent in industrial processes, including the extraction of oils and fats, and in the formulation of adhesives and sealants. Historically used as a degreasing agent and in leaded gasoline, these applications have been largely discontinued due to toxicity concerns. Also employed in the synthesis of other organic compounds, such as ethylenediamine and certain dyes. Its use is now highly regulated because of environmental and health risks.