Used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its structure allows for participation in sulfa-based reactions, making it valuable in the preparation of sulfonamide derivatives. Commonly employed in the synthesis of bioactive molecules due to the stability and reactivity of the phenylsulfonyl group. Also utilized in the formation of heterocyclic compounds through cyclization reactions. Its amide functionality enables further functionalization, supporting its role in multi-step synthetic routes.