Used in the synthesis of pharmaceutical intermediates, particularly in the development of kinase inhibitors for cancer treatment. Its isocyanate group readily reacts with amines and alcohols, making it valuable in constructing complex heterocyclic compounds for drug discovery. Also employed in agrochemical research to build bioactive molecules with pest control properties. Commonly utilized in conjugation reactions to link molecular fragments in medicinal chemistry due to its selective reactivity and stable pyrimidine core.