Used primarily in peptide synthesis, it serves as a building block for creating peptides with isotopic labeling. The incorporation of the 15N isotope allows for advanced studies in nuclear magnetic resonance (NMR) spectroscopy, enabling researchers to analyze peptide structures and interactions with high precision. It is particularly valuable in biochemical and pharmaceutical research for tracking and understanding molecular behavior in complex biological systems. Additionally, it aids in the development of labeled peptides for diagnostic and therapeutic applications.