Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antimalarial and anticancer agents. Its structure supports the formation of quinoline-based compounds that exhibit biological activity. Commonly employed in organic synthesis to introduce the chloro-methylquinoline moiety into larger molecules, enhancing their binding affinity to specific enzymes or receptors. Also utilized in the preparation of fluorescent probes and dyes due to its aldehyde functional group, which allows for easy derivatization. Shows potential in agrochemical research for developing new pesticidal agents with improved efficacy.