Used primarily as an intermediate in the synthesis of dyes and pigments, particularly for coloring textiles, paper, and leather. It plays a crucial role in the production of azo dyes, which are known for their vibrant colors and stability. Additionally, it is employed in the manufacture of polymers and resins, contributing to the development of materials with enhanced durability and chemical resistance. In the field of analytical chemistry, it serves as a reagent for detecting and quantifying certain metals and compounds. Its applications also extend to the pharmaceutical industry, where it is utilized in the synthesis of various active pharmaceutical ingredients (APIs) and intermediates.