Used as a key intermediate in the synthesis of quinoline-based pharmaceuticals, particularly in antimalarial and anticancer agents. Its structure supports the development of compounds with high biological activity due to the presence of trifluoromethyl and hydroxy groups, which enhance binding affinity and metabolic stability. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates. Also utilized in the preparation of fluorescent probes and dyes, leveraging the quinoline core’s photophysical properties.