Used primarily in pharmaceutical research as a key intermediate in the synthesis of tyrosine kinase inhibitors, particularly those targeting cancer pathways such as EGFR (epidermal growth factor receptor). Its structure supports binding to enzyme active sites, making it valuable in developing anticancer agents. Also explored in the design of selective kinase modulators for treating inflammatory and neurodegenerative diseases. Commonly utilized in structure-activity relationship (SAR) studies to optimize potency and selectivity in drug candidates.