Used extensively in the production of azo dyes and pigments, it acts as an intermediate that imparts vibrant colors to textiles, paper, and leather. It is also employed in the synthesis of pharmaceuticals, particularly sulfa drugs, which are effective antibiotics. In analytical chemistry, it serves as a reagent for detecting and quantifying certain compounds. Additionally, it finds use in the manufacturing of surfactants and detergents due to its ability to enhance solubility and cleaning efficiency. Its role in the photographic industry includes acting as a stabilizer in developing solutions.