Used as a key intermediate in the synthesis of antimalarial drugs, particularly in the development of quinoline-based pharmaceuticals. Its halogenated structure enhances reactivity in cross-coupling reactions, making it valuable in medicinal chemistry for constructing bioactive molecules. Also employed in research for developing new antimicrobial and anticancer agents due to its ability to interact with enzyme active sites. Additionally, serves as a building block in the preparation of fluorescent probes and sensors, leveraging the quinoline core’s photophysical properties for detecting metal ions in environmental and biological systems.