Used as a key intermediate in the synthesis of quinolone-based pharmaceuticals, particularly in the production of antimalarial drugs. Its structure allows for functionalization at multiple sites, making it valuable in developing bioactive molecules. It is also employed in the preparation of agrochemicals and dyes due to its stable aromatic core and reactive chlorine atoms. In research, it serves as a building block for novel heterocyclic compounds with potential antimicrobial and anticancer activities.