Used primarily in the synthesis of dyes and pigments, especially azo dyes, which are widely applied in the textile, leather, and paper industries for coloring. It serves as an intermediate in the production of agricultural chemicals, including certain herbicides and pesticides. Also utilized in the manufacture of rubber chemicals and curing agents for epoxy resins. Plays a role in the development of pharmaceuticals and photographic chemicals. Due to its reactivity, it is involved in various organic syntheses where an aromatic amine group is required.