Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its structure supports the design of biologically active molecules by serving as a building block in heterocyclic chemistry. Commonly employed in medicinal chemistry for optimizing drug candidates due to its favorable binding properties and metabolic stability. Also utilized in agrochemicals for the development of novel pesticides and herbicides, where the pyrimidine core contributes to target specificity and efficacy.