Used primarily as a highly reactive chemical building block in the synthesis of pharmaceuticals and agrochemicals. Its sulfonyl fluoride group enables selective protein labeling and covalent inhibition in medicinal chemistry, making it valuable in the development of targeted covalent drugs. It is also employed in chemical biology for activity-based protein profiling due to its ability to react selectively with specific amino acid residues in enzymes. The presence of both amine and fluorine substituents allows for further functionalization and improved binding properties in drug candidates. Additionally, it serves as a key intermediate in the preparation of sulfonamide-based compounds with potential biological activity.