Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antimalarial and anticancer agents. Its structure allows for selective functionalization, making it valuable in constructing complex heterocyclic compounds. Commonly employed in cross-coupling reactions to form C–C bonds, it contributes to the preparation of biologically active molecules and agrochemicals. Also utilized in research for designing fluorescent probes due to its quinoline backbone, which exhibits inherent photophysical properties.