Used primarily as an intermediate in the synthesis of dyes and pigments, it plays a crucial role in producing vibrant and stable colorants for textiles, inks, and coatings. Its sulfonic acid group enhances water solubility, making it suitable for aqueous dye formulations. Additionally, it is employed in the manufacture of certain pharmaceuticals, where it serves as a building block for active ingredients. In research, it is utilized as a reagent for chemical reactions, particularly in organic synthesis. Its stability and reactivity make it a valuable component in various industrial and laboratory applications.