Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and anticancer agents. Its structure allows for selective functionalization, making it valuable in creating active ingredients in drug discovery. Commonly employed in cross-coupling reactions to build complex pyrimidine-based molecules. Also utilized in agrochemical research for designing novel pesticides and herbicides. Its halogen atoms enable efficient derivatization through substitution reactions, supporting rapid compound optimization in medicinal chemistry.