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 complex heterocyclic compounds that interact with biological targets such as kinases and DNA. Commonly employed in medicinal chemistry for building quinoline-based drug candidates due to its reactivity and ability to form stable derivatives. Also utilized in research settings for designing fluorescent probes and imaging agents, taking advantage of the quinoline core’s photophysical properties.