Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization in complex molecule assembly, particularly in the development of fluorinated compounds with enhanced metabolic stability. The sulfonyl chloride group readily reacts with amines and alcohols, making it valuable for forming sulfonamides and sulfonate esters in drug design. It is also employed in the preparation of kinase inhibitors and other bioactive molecules where the cyano and fluoro groups contribute to target binding and pharmacokinetic properties.