Used primarily as a diazonium salt in organic synthesis, it serves as a key intermediate for coupling reactions to form azo compounds, which are widely applied in dye and pigment manufacturing. Its ability to introduce aryl groups makes it valuable in the production of colorants for textiles, inks, and coatings. Additionally, it is utilized in surface modification processes, where it helps in grafting functional groups onto materials like polymers or nanoparticles, enhancing their properties for specific industrial applications. Its role in photolithography is also notable, aiding in the development of microelectronic components.