Used in the synthesis of quinoline-based pharmaceutical intermediates, particularly in the development of antitumor and antimicrobial agents. Its structure supports further functionalization for creating bioactive molecules. Commonly employed in research settings for designing kinase inhibitors and fluorescent probes due to the electron-withdrawing nitro and chloro groups enhancing reactivity and binding selectivity. Also serves as a building block in heterocyclic chemistry for constructing complex nitrogen-containing compounds.