Used as an intermediate in organic synthesis, particularly in the preparation of sulfonamide-based pharmaceuticals. It serves as a protecting group for amines in peptide synthesis due to its stability under various reaction conditions and selective deprotection properties. Also employed in the development of dyes and functional materials where nitroaromatic and sulfonamide functionalities are required. Its electron-withdrawing nature makes it useful in studying reaction mechanisms and designing sensors or optoelectronic materials.