Used primarily as an intermediate in the synthesis of fluorinated compounds, including refrigerants and polymers. It serves in the production of hydrofluorocarbons (HFCs) and other halogenated solvents. Also employed in organic synthesis for introducing chlorine atoms in specialty chemicals. Its reactivity makes it valuable in creating intermediates for agrochemicals and pharmaceuticals. Due to its toxicity and environmental persistence, handling requires strict controls, and its use is often limited to closed industrial processes.