Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Serves as a building block in the development of antimalarial and anticancer agents due to its quinoline core and halogen functionality. The bromine atom allows for further functionalization via cross-coupling reactions such as Suzuki or Heck reactions. Also employed in the preparation of fluorescent probes and sensors, leveraging the inherent photophysical properties of the quinoline scaffold. Its derivatives are investigated for use in materials science, particularly in electron-transport layers and optoelectronic devices.