Used primarily as an intermediate in the synthesis of dyes and pigments, it plays a crucial role in the production of vibrant and stable colors for textiles and industrial applications. It is also employed in organic synthesis, particularly in the preparation of sulfonamide derivatives, which are important in pharmaceutical manufacturing. Additionally, it serves as a reagent in chemical research for studying sulfonation reactions and developing new compounds. Its utility extends to the field of electroplating, where it aids in the formulation of plating solutions to improve surface finishes on metals.