D-Arginine amide dihydrochloride is primarily utilized in biochemical research and pharmaceutical development. It serves as a crucial intermediate in the synthesis of peptides and proteins, particularly in studies focusing on enzyme mechanisms and receptor interactions. This compound is also employed in the preparation of arginine-based derivatives, which are investigated for their potential therapeutic applications, including cardiovascular health and immune system modulation. Additionally, it plays a role in the development of diagnostic agents and in the study of metabolic pathways involving arginine. Its stability and solubility in aqueous solutions make it a valuable tool in various experimental protocols.