Used in the synthesis of antimalarial drugs, particularly as a key intermediate in developing compounds related to chloroquine and other 4-aminoquinoline derivatives. Its structure supports activity against Plasmodium species by interfering with heme detoxification in the parasite. Also investigated for antiviral and anticancer applications due to its ability to intercalate DNA and inhibit specific cellular enzymes. Commonly employed in medicinal chemistry research for optimizing drug candidates with improved resistance profiles and bioavailability.