Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly targeting tyrosine kinases involved in cancer cell proliferation. Shows potential in developing anticancer agents due to its ability to cross cell membranes and bind selectively to ATP-binding sites in enzymes. Also employed in the design of fluorescent probes for studying biological systems, leveraging its rigid aromatic structure for signal stability. Commonly utilized in structure-activity relationship (SAR) studies to optimize drug candidates for improved potency and metabolic stability.