Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of sulfonamide-based drugs. It serves as a building block in the preparation of dyes and pigments due to its aromatic amine functionality. Also employed in the production of certain polymers and resins where sulfonyl groups enhance thermal and chemical stability. Its reactivity allows for easy modification in multi-step organic syntheses, making it valuable in research and industrial settings.