Used in organic semiconductor materials due to its electron-deficient quinazoline core and extended aromatic system, enhancing charge transport properties. Employed in the development of fluorescent sensors and optoelectronic devices, where the naphthalene group contributes to strong emission and light-harvesting capabilities. Serves as a building block in medicinal chemistry for synthesizing kinase inhibitors and anticancer agents, leveraging its ability to intercalate with DNA and inhibit specific enzyme activity. Also applied in liquid crystal formulations for display technologies, benefiting from its thermal stability and molecular rigidity.