Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of antimalarial drugs. Its structure supports the formation of quinoline-based active ingredients that exhibit biological activity against Plasmodium species. Also employed in research settings for creating novel heterocyclic compounds with potential therapeutic properties. The aldehyde group allows for easy functionalization, enabling the attachment of various substituents during drug design. Additionally, it serves as a building block in agrochemical research for developing new crop protection agents.