Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of antidiabetic and antiviral drugs. It serves as a building block in organic synthesis due to its reactive guanidine group, which can participate in the formation of heterocyclic compounds. Also employed in the development of agrochemicals, including certain herbicides and plant growth regulators. Its hydrochloride salt form enhances solubility and stability, making it suitable for use in aqueous reaction systems. Additionally, it has been explored in research settings for its potential role in enzyme inhibition and as a catalyst in specific condensation reactions.