Used extensively in metabolic research and studies involving nitrogen balance, this compound serves as a stable isotope-labeled form of L-arginine. It is particularly valuable in tracing and quantifying arginine metabolism in biological systems, aiding in the understanding of protein synthesis, urea cycle disorders, and nitric oxide production. Its labeled isotopes allow for precise detection and measurement using mass spectrometry or NMR techniques, making it a critical tool in biochemical and pharmaceutical research. Additionally, it is employed in clinical studies to investigate conditions like hypertension, cardiovascular diseases, and immune function, where arginine plays a key role.