2-({4-[(7-Chloroquinolin-4-yl)amino]pentyl}(ethyl)amino)ethyl acetate is a chemical compound structurally related to the antimalarial drug chloroquine. It features a 7-chloroquinoline core, which is a hallmark of classic 4-aminoquinoline antimalarials, linked via an aminoalkyl chain to an ethyl acetate moiety. This specific ester derivative is a key synthetic intermediate. This compound is primarily used in the research and development of novel antimalarial agents. It serves as a crucial precursor in the synthesis of amodiaquine, a well-established 4-aminoquinoline antimalarial drug used for the treatment and prevention of malaria, particularly in areas with chloroquine-resistant *Plasmodium falciparum*. The molecule allows for structural modifications aimed at optimizing pharmacokinetic properties and overcoming drug resistance. As an advanced intermediate, its handling requires standard laboratory safety precautions for organic compounds. Its primary significance lies in medicinal chemistry, specifically within the antimalarial drug discovery pipeline, bridging the gap between basic quinoline chemistry and the final active pharmaceutical ingredient (API).