Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in research settings to design compounds targeting protein kinases involved in cell signaling pathways. Also utilized in the preparation of fluorescent probes due to its electron-withdrawing substituents that enhance photostability and signal detection in bioimaging applications.