Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antitumor agents. Its structure supports the creation of complex quinoline-based compounds that exhibit biological activity. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to the presence of reactive sites for further functionalization. Also utilized in the preparation of fluorescent probes and optoelectronic materials owing to the quinoline core’s photophysical properties.