Used as a key intermediate in the synthesis of quinoline-based pharmaceuticals, particularly in the development of antimalarial and anticancer agents. Its aldehyde functional group allows for easy modification in multi-step organic reactions, enabling the formation of more complex heterocyclic structures. Commonly employed in medicinal chemistry research for constructing bioactive molecules due to the dimethyl and chloro substituents enhancing lipophilicity and target binding affinity. Also utilized in the preparation of fluorescent probes and agrochemicals owing to its aromatic scaffold and reactivity profile.