Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for functionalization at multiple sites, making it valuable in the development of herbicides and plant growth regulators. It is also employed in the preparation of specialty chemicals where chlorinated pyrimidine rings enhance biological activity or stability. Due to the presence of reactive chlorine atoms, it readily participates in nucleophilic substitution reactions, enabling the construction of complex molecules in research and industrial settings.