Used as an intermediate in the synthesis of dyes and pigments, particularly in the production of azo dyes. It acts as a coupling component in dye formation, contributing to the development of vibrant color shades. Also employed in the manufacture of fluorescent whitening agents for textiles and paper. Its sulfonate group enhances water solubility, making it suitable for aqueous-based industrial processes. Additionally, it finds use in chemical research as a building block for organic synthesis.