Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and anticancer agents. Its structure allows for selective substitution reactions, making it valuable in constructing complex heterocyclic compounds. Commonly employed in medicinal chemistry for modifying pyrimidine-based drug candidates to enhance biological activity or alter pharmacokinetic properties. Also utilized in agrochemical research for developing novel pesticides and herbicides due to its reactivity and functional group compatibility.