Used as a labeled compound in research and analytical chemistry, particularly in studies involving mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy. It serves as a deuterated internal standard for the quantification of non-deuterated analogs in complex mixtures, ensuring accuracy and precision in measurements. Its application is valuable in pharmaceutical research, environmental analysis, and metabolic studies, where tracking and identifying specific compounds is essential. The deuterium labeling allows for differentiation from naturally occurring molecules, aiding in the detailed analysis of chemical pathways and interactions.