Used primarily as a coupling agent in the production of azo dyes, it facilitates the formation of stable diazo compounds, which are essential for creating vibrant and long-lasting colors in textiles and fabrics. Its role in dye synthesis ensures improved color fastness and resistance to fading. Additionally, it finds application in the preparation of pigments for inks and coatings, enhancing their durability and performance. In research, it serves as a reagent for studying diazo coupling reactions and their mechanisms. Its water-soluble nature makes it suitable for use in aqueous dyeing processes, contributing to environmentally friendly production methods.