Used primarily as a key intermediate in the synthesis of fluorosurfactants and surface treatment agents. Its unique structure provides both hydrophobic and oleophobic properties, making it valuable in coatings for textiles, paper, and leather to impart water, oil, and stain resistance. Commonly found in formulations for fire-fighting foams due to its ability to reduce surface tension effectively. Also utilized in the electronics industry for semiconductor processing and in medical device coatings where low surface energy and chemical stability are required. Due to environmental concerns, use is increasingly regulated and alternatives are being developed.