Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its sulfonyl chloride group readily reacts with amines and alcohols, enabling the formation of sulfonamides and sulfonate esters that are important in drug design. Commonly employed in medicinal chemistry for building heterocyclic scaffolds with biological activity. Also utilized in agrochemical research for developing novel pesticides with targeted action. Its reactivity and structural features make it valuable in creating libraries of compounds for high-throughput screening in drug discovery.