Used as a building block in the synthesis of fluorescent dyes and optical brighteners due to its rigid, electron-deficient heterocyclic structure. Its strong electron-withdrawing nitrile group and extended π-conjugation make it valuable in materials science, particularly in the development of organic semiconductors and luminescent sensors. Commonly employed in the preparation of high-performance fluorophores for bioimaging and labeling applications. Also finds use in agrochemicals and pharmaceutical intermediates where nitrogen-rich scaffolds enhance binding affinity and metabolic stability.