Used primarily as a reactive intermediate in the synthesis of perfluorinated compounds. Its high reactivity allows it to introduce perfluoroheptyl groups into target molecules, making it valuable in producing surfactants, coatings, and polymers with exceptional water and oil repellency. Commonly applied in specialty fluorochemical manufacturing for electronics, aerospace, and medical device industries where thermal stability and chemical resistance are critical. Also utilized in surface treatments to create non-stick, low-friction, and anti-corrosion properties on materials.