Used as a potent inhibitor of JAK3 (Janus kinase 3) in biochemical research, particularly targeting kinases involved in inflammatory and oncogenic signaling pathways. It shows promise in studies related to cancer therapy due to its ability to selectively interfere with protein kinases that drive tumor growth. Commonly employed in in vitro assays to modulate cellular activity and investigate signal transduction mechanisms. Its structure supports high binding affinity, making it valuable in the development of targeted therapeutics. Also utilized in structure-activity relationship (SAR) studies to design more effective kinase inhibitors.