Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of active pharmaceutical ingredients (APIs) due to its ability to form stable heterocyclic structures. Its hydrazine functionality allows for coupling reactions with carbonyl compounds, enabling the creation of hydrazone derivatives with potential biological activity. Also employed in agrochemical research for designing novel pesticides and herbicides owing to its electron-rich pyrimidine core. Commonly utilized in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates.