This chemical is primarily used as a key intermediate in organic synthesis, particularly in the preparation of sulfonamide derivatives. It plays a significant role in the development of pharmaceuticals, where it is utilized to introduce the sulfonamide functional group into drug molecules. This group is essential in many therapeutic agents, including antibiotics, diuretics, and anti-inflammatory drugs. Additionally, it is employed in research settings for the modification of peptides and proteins, aiding in the study of biochemical pathways and interactions. Its reactivity with amines makes it valuable in creating compounds with specific biological activities.