Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and anticancer agents. It serves as a building block for nucleoside analogs, which mimic natural nucleosides and interfere with viral replication or tumor cell proliferation. Also employed in the preparation of agrochemicals and functionalized pyrimidine derivatives for research in medicinal chemistry. Its hydrochloride form enhances solubility and stability, making it suitable for reactions in aqueous or polar environments.