Widely used in the dye and pigment industry, this chemical serves as an important intermediate for synthesizing azo dyes and pigments. It reacts with diazonium salts to form insoluble colored compounds, making it ideal for producing dyes used in textiles, leather, and paper. It is also employed in the manufacture of high-performance pigments for paints, inks, and plastics due to its excellent light and heat stability. Additionally, it finds use in histology as a coupling agent in enzyme staining techniques, particularly for detecting esterase activity in cells and tissues. Its ability to form intense colors with high specificity makes it valuable in both industrial and biological applications.