Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its structure allows for selective functionalization, making it valuable in building active pharmaceutical ingredients (APIs) through cross-coupling and nucleophilic substitution reactions. Commonly employed in medicinal chemistry for constructing pyrimidine-based drug candidates targeting oncology and infectious diseases. Also utilized in agrochemical research for designing novel pesticides with improved efficacy and selectivity.