Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its halogen substitution pattern allows for selective cross-coupling reactions, making it valuable in medicinal chemistry for building complex heterocyclic systems. Commonly employed in the preparation of active pharmaceutical ingredients (APIs) where pyrimidine scaffolds are required. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its reactivity and structural versatility.