Used in pharmaceutical research as a key intermediate in the synthesis of quinazoline-based compounds, which show potential as anticancer, antimicrobial, and anti-inflammatory agents. Its structure allows for selective modifications at the bromine site, enabling the development of targeted kinase inhibitors. Commonly employed in medicinal chemistry for building blocks in drug discovery programs, especially in the design of tyrosine kinase inhibitors. Also utilized in the preparation of fluorescent probes due to the inherent photophysical properties of the quinazoline core.