Used primarily in the dye industry, it serves as an intermediate in the synthesis of various dyes and pigments, particularly azo dyes, which are widely employed in textiles, inks, and plastics. It is also utilized in the production of pharmaceuticals, where it acts as a building block for certain drugs. In the field of organic chemistry, it is employed as a reagent in various reactions, including diazotization processes. Additionally, it finds application in the manufacture of rubber chemicals and as a corrosion inhibitor in industrial settings. Its role in research and development includes use as a standard or reference compound in analytical chemistry.