Used as an intermediate in organic synthesis, particularly in the preparation of dyes and pigments. It plays a key role in the production of azo compounds through diazotization and coupling reactions. Also utilized in the synthesis of certain pharmaceuticals and agrochemicals due to its ability to introduce nitro and sulfone functional groups. Its reactivity makes it valuable in cross-coupling reactions and the development of sulfonamide-based compounds. Handle with care due to potential decomposition under heat or acidic conditions.