Used as a fluorinated building block in organic synthesis, particularly in pharmaceutical and agrochemical industries. Its sulfonate group enhances solubility and serves as a good leaving group, facilitating substitution reactions. The presence of fluorine improves metabolic stability and bioavailability in drug design, making it valuable in the development of fluorinated active pharmaceutical ingredients (APIs). Also employed in electrochemical applications as a supporting electrolyte due to its ionic nature and thermal stability.