Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its structure allows for selective functionalization, making it valuable in creating active pharmaceutical ingredients (APIs) with high potency. Commonly employed in medicinal chemistry for constructing pyrimidine-based drug candidates targeting oncology and infectious diseases. Also utilized in agrochemical research for designing novel pesticides due to its ability to interact with biological targets in pests. Its hydrochloride form enhances solubility and stability, facilitating handling in synthetic processes.