Used primarily as an intermediate in the synthesis of pharmaceutical compounds, especially in the development of kinase inhibitors and other bioactive molecules. Its halogen substituents allow for selective cross-coupling reactions, making it valuable in medicinal chemistry for building complex quinoline-based structures. Commonly employed in research settings to design potential anticancer, antimicrobial, and anti-inflammatory agents. Also utilized in the preparation of fluorescent probes and materials for organic electronics due to the quinoline core’s photophysical properties.