Used in the synthesis of quinoline-based pharmaceuticals and bioactive molecules. Acts as an intermediate in the preparation of antimalarial and anticancer agents due to the quinoline scaffold's affinity for biological targets. Employed in coordination chemistry as a ligand for metal ions, forming complexes with potential catalytic or luminescent properties. Also utilized in the development of fluorescent probes and sensors, leveraging the inherent fluorescence of the quinoline ring for detection of metal ions or biomolecules.