Used as a fluorescent whitening agent in detergents and textile industries to enhance the brightness and whiteness of fabrics and paper products. It absorbs ultraviolet light and emits blue fluorescence, counteracting yellowish tones and making materials appear cleaner and more vibrant. Also employed in some cosmetic formulations for its optical brightening properties. Its water solubility and stability under alkaline conditions make it suitable for integration into liquid and powder laundry detergents.