Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly for targeting cancer-related enzymes. It serves as a building block in the development of compounds with antitumor and antimicrobial activities. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for optimizing drug candidates. Also employed in the design of fluorescent probes due to the inherent photophysical properties of the quinoline core, useful in cellular imaging and biochemical assays.