Used as a key intermediate in the synthesis of various pharmaceutical compounds, particularly in the development of sulfonamide-based drugs. It plays a crucial role in creating molecules with potential antibacterial, antiviral, or anticancer properties. Additionally, it is employed in organic synthesis as a sulfonylating agent to introduce the 5-bromopyridine-2-sulfonyl moiety into nucleophiles such as amines, facilitating further chemical modifications for pyridine-based derivatives. Its high reactivity makes it valuable in research and industrial applications for designing novel bioactive compounds.