Used primarily in the dye industry, this chemical serves as an intermediate in the synthesis of various azo dyes and pigments. It plays a crucial role in producing vibrant and stable colors for textiles, leather, and paper. Additionally, it is employed in the manufacturing of optical brighteners, which enhance the whiteness and brightness of materials. Its sulfonic acid group makes it water-soluble, facilitating its use in aqueous dyeing processes. The compound is also utilized in research and development for creating specialized dyes with specific properties.