Widely used as a reactive intermediate in organic synthesis, particularly in the preparation of sulfa drugs and dyes. It serves as a key building block in the pharmaceutical industry for synthesizing sulfonamide-based antibiotics, which exhibit antibacterial activity by inhibiting bacterial growth. Its fluoride group enhances reactivity, making it valuable in click chemistry and labeling techniques for biochemical probes. Also employed in the development of enzyme inhibitors due to its ability to covalently bind to active sites. Commonly used in research settings for protein profiling and activity-based screening.