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 medicinal chemistry due to its ability to enhance binding selectivity and metabolic stability in drug candidates. Commonly employed in the preparation of pyrazole-based bioactive molecules with antiviral, anti-inflammatory, and antitumor activities. Its hydrochloride salt form improves solubility and handling in aqueous reaction systems.