Used primarily as an intermediate in the synthesis of agrochemicals and pharmaceuticals. It serves as a key building block in the production of sulfonylhydrazone derivatives, which exhibit biological activity as herbicides and plant growth regulators. Also employed in the development of dyes and fluorescent whiteners due to its ability to form stable sulfonamide linkages. Its reactivity makes it valuable in organic synthesis, particularly in cyclization reactions to form heterocyclic compounds with potential medicinal applications.