n-Propyl Alcohol-OD is primarily used as a labeled compound in various research and analytical applications. It serves as a deuterated solvent in nuclear magnetic resonance (NMR) spectroscopy, aiding in the study of molecular structures and dynamics. Additionally, it is employed in the synthesis of deuterated pharmaceuticals and organic compounds, where the presence of deuterium enhances the stability and metabolic properties of the molecules. This chemical is also utilized in kinetic studies and isotope effect research, providing insights into reaction mechanisms and pathways. Its application extends to the field of mass spectrometry, where it acts as a reference standard for accurate mass measurements and isotopic labeling experiments.