Used as a key intermediate in the synthesis of agrochemicals, particularly in the production of herbicides and plant growth regulators. Its reactivity allows for the introduction of pyrimidine-based functional groups into larger molecules, enhancing their biological activity. Also employed in the development of pharmaceuticals where chlorinated pyrimidine scaffolds are needed for drug design, especially in antiviral and anticancer agents. Commonly utilized in research laboratories for constructing complex heterocyclic systems through nucleophilic substitution or cross-coupling reactions.