Used as an intermediate in the synthesis of kinase inhibitors, particularly in pharmaceutical research targeting cancer therapies. Its structure supports the development of compounds with high selectivity for protein kinases involved in cell signaling pathways. Commonly employed in medicinal chemistry for constructing potent bioactive molecules due to the presence of reactive halogen sites that allow further functionalization. Also utilized in the preparation of fluorescent probes for biochemical assays, leveraging its electron-withdrawing sulfonamide group and heteroaromatic core for enhanced stability and binding affinity.