Used in the synthesis of azo dyes and pigments due to its ability to form stable aromatic amine derivatives. Acts as an intermediate in pharmaceutical manufacturing, particularly in the development of sulfonamide-based antimicrobial agents. Also employed in the production of certain photochemicals and light-sensitive compounds, where its electron-donating properties enhance reactivity in coupling reactions. Its structure supports use in analytical chemistry as a derivatizing agent for detecting carbonyl compounds.