Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of antimalarial and anticancer agents. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for building quinoline-based drug candidates. Commonly employed in cross-coupling reactions such as Suzuki and Heck reactions to form biaryl systems. Also utilized in the preparation of fluorescent probes and optoelectronic materials due to its conjugated aromatic framework.