Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and anticancer agents. It serves as a building block in the preparation of quinazoline derivatives that exhibit kinase inhibitory activity, such as EGFR inhibitors. Commonly employed in medicinal chemistry for structure-activity relationship studies due to its ability to form substituted quinazolines with enhanced biological activity. Also utilized in agrochemical research for developing novel pesticides with improved efficacy.