Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and vasodilator drugs. It serves as a building block for quinazoline-based compounds that exhibit biological activity, including alpha-adrenergic blocking properties. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for designing new drug candidates targeting cardiovascular diseases. Also employed in research settings to explore structure-activity relationships in heterocyclic compounds.