Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and antiviral agents. Its structure supports the creation of complex heterocyclic systems found in bioactive molecules. Commonly employed in medicinal chemistry for constructing quinoline-based drug candidates targeting oncology and infectious diseases. Also utilized in research settings to develop fluorescent probes due to its electron-withdrawing nitrile group and halogen functionality, enabling further functionalization via cross-coupling reactions.