Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective modification, enabling the creation of targeted therapies that interfere with tumor cell signaling pathways. Commonly employed in research settings to develop anticancer agents due to its reactivity and ability to form stable bonds with biological targets. Also utilized in the preparation of fluorescent probes for biochemical assays, aiding in the study of enzyme activity and cellular processes.