Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry due to its ability to form stable heterocyclic structures that interact with biological targets. Commonly employed in the preparation of active pharmaceutical ingredients (APIs) where the pyrimidine core enhances binding affinity to enzymes and receptors. Also utilized in agrochemical research for designing novel pesticides with improved selectivity and efficacy.