Used as a deuterated analog in pharmaceutical research to study drug metabolism and pharmacokinetics, providing insights into the behavior of non-deuterated compounds. It serves as a labeling agent in mass spectrometry and NMR spectroscopy, enhancing the detection and analysis of organic molecules. Additionally, it is employed in the synthesis of deuterated organic compounds for use in mechanistic studies and as internal standards in analytical chemistry. Its stable isotope labeling aids in tracing chemical pathways and understanding reaction mechanisms in complex systems.