Used in research and development as a labeled compound for metabolic studies, aiding in the tracking and analysis of biochemical pathways. It serves as a stable isotope-labeled internal standard in mass spectrometry, enhancing the accuracy of quantitative analysis in pharmacokinetics and drug metabolism studies. Additionally, it is employed in the synthesis of deuterated analogs of pharmaceuticals, facilitating the investigation of drug mechanisms and interactions. Its applications also extend to NMR spectroscopy, where it helps in elucidating molecular structures and dynamics.