L-2-Aminobutanol-d5 is primarily utilized in research and development as a labeled compound in various scientific studies. Its deuterated form makes it particularly valuable in nuclear magnetic resonance (NMR) spectroscopy, where it serves as a tracer to investigate molecular structures and dynamics. Additionally, it is employed in metabolic studies to track and analyze biochemical pathways, providing insights into the metabolism of related compounds. In pharmaceutical research, it aids in the development and testing of new drugs by acting as a reference standard or internal standard in analytical methods, ensuring accurate quantification and identification of substances. Its stable isotope labeling also supports studies in environmental science, helping to trace the fate and transformation of chemicals in ecosystems.