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 iodine functionality. The iodine atom allows for further functionalization via cross-coupling reactions such as Suzuki or Heck reactions. Also investigated for its potential in materials science, particularly in the design of fluorescent probes and sensors, owing to the inherent photophysical properties of the quinolinone scaffold.