Used primarily as a key intermediate in the synthesis of agrochemicals and pharmaceuticals. Its reactivity allows for the introduction of sulfonyl functional groups into complex molecules, enhancing their biological activity. Commonly employed in the preparation of herbicides and plant growth regulators due to its ability to modify aromatic structures for improved efficacy. Also utilized in research settings for developing novel sulfonamide-based compounds with potential therapeutic properties. The compound's electrophilic nature makes it suitable for coupling reactions in organic synthesis, particularly in the formation of sulfonamide bonds under controlled conditions.