Used as a fluorescent whitening agent in detergents and textile industries due to its ability to absorb UV light and emit blue fluorescence, enhancing the brightness and whiteness of fabrics and paper products. Also employed in the synthesis of organic semiconductors and optoelectronic materials because of its rigid, conjugated structure that supports efficient charge transport and light emission. Serves as a building block in the development of fluorescent dyes and sensors for detecting metal ions or environmental pollutants. Additionally, it finds use in research as a model compound in photochemical studies and in the preparation of more complex heterocyclic systems.