Used primarily as a stable isotope-labeled internal standard in mass spectrometry and nuclear magnetic resonance (NMR) studies, this deuterated compound enables accurate quantification and tracking of metabolic pathways. Its labeled structure allows researchers to distinguish it from non-deuterated analogs in biological and environmental samples. Commonly applied in pharmaceutical research, it aids in studying drug metabolism and degradation products. It is also employed in organic synthesis where deuterium incorporation is needed to modify reaction kinetics or improve detection sensitivity.