Used as an intermediate in the synthesis of azo dyes and pigments, particularly for producing high-performance colorants with good light and heat stability. It plays a key role in the manufacturing of specialty dyes for textiles, inks, and coatings. Also employed in the development of certain polyimides and polyamides to enhance thermal resistance and mechanical strength. Additionally, it finds use in research for developing chemically sensitive materials and sensors due to its aromatic amine functionality.