Used primarily as an intermediate in the synthesis of other organic compounds, especially in the production of pesticides and flame retardants. It serves as a chlorinating agent in industrial processes where controlled chlorination is required. Also employed in the manufacture of specialty solvents and in research laboratories for developing halogenated compounds. Due to its reactivity, it plays a role in the preparation of polymers and plastic additives. Its use is limited in consumer products because of toxicity and environmental concerns, making it more suitable for closed-system industrial applications.