Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of antimalarial, antibacterial, and antifungal agents. Its quinoline structure with chloro, iodo, and methoxy groups enables selective modifications and effective interaction with microbial targets, making it valuable in medicinal chemistry for optimizing drug potency and bioavailability. Also employed in research settings to develop novel quinoline-based therapeutics targeting infectious diseases. Additionally, utilized as a reagent in organic synthesis, especially in cross-coupling reactions to replace the iodine atom with other functional groups.