Primarily used in the dye industry, this chemical serves as an intermediate in the synthesis of azo dyes, which are widely employed in textiles, paper, and leather coloring. Its sulfonic acid group enhances water solubility, making it suitable for dye formulations that require good affinity to substrates. Additionally, it is utilized in the production of pigments and inks, contributing to vibrant and stable colorants. Its role in organic synthesis also extends to the creation of specialized chemicals for research and industrial applications.