Used as a UV absorber and dyeing auxiliary in the textile industry, particularly in formulations for reactive, direct, and reduction dyes applied to cotton and other cellulosic fibers. Its sulfonate groups enhance water solubility, enabling efficient dyeing processes in aqueous solutions, improving color dispersion, uniformity, and reducing issues like uneven coloring or stains. It provides light stability to dyes and pigments by absorbing UV radiation, thereby enhancing color fastness and resistance to photodegradation. Additionally, it is employed in the paper industry to achieve uniform coloring and improved light stability.