This chemical is primarily used as a key intermediate in the synthesis of dyes and pigments, particularly in the production of acid dyes for textiles. It plays a crucial role in enhancing color fastness and brightness in fabrics, ensuring vibrant and long-lasting hues. Additionally, it is employed in the formulation of specialty chemicals for the paper and leather industries, where it aids in improving the quality and durability of dyed materials. Its sulfonic acid group contributes to its solubility and stability in aqueous solutions, making it suitable for various industrial dyeing processes.