Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and enzyme inhibitors. Its sulfonyl fluoride group readily reacts with nucleophiles, making it valuable in medicinal chemistry for constructing sulfonamide linkages. It is also employed in chemical biology as a labeling agent due to its ability to selectively modify proteins and other biomolecules. The presence of fluorine atoms enhances binding affinity and metabolic stability in drug candidates, contributing to improved pharmacokinetic properties. Additionally, it serves as a building block in agrochemicals and functional materials where fluorinated aromatic systems are advantageous.