Used primarily as a reactive intermediate in the synthesis of fluorinated compounds, this chemical enables the introduction of long perfluorinated chains into larger molecules. Its acyl chloride functionality readily reacts with nucleophiles such as alcohols and amines, making it valuable in creating surfactants, surface modifiers, and specialty polymers. These end products exhibit strong water and oil repellency, thermal stability, and chemical resistance. Common applications include high-performance coatings for textiles, electronics, and aerospace materials, where durability and low surface energy are critical. It is also employed in research to develop new fluorochemicals for use in extreme environments.