Used as a stable isotope-labeled compound in nuclear magnetic resonance (NMR) spectroscopy, aiding in the study of molecular structures and dynamics. It serves as a tracer in metabolic research to track biochemical pathways and understand metabolic processes. Applied in the synthesis of labeled pharmaceuticals, enabling the investigation of drug metabolism and distribution. Utilized in environmental studies to trace the behavior and transformation of organic compounds in ecosystems. Also employed in analytical chemistry as an internal standard for accurate quantification in mass spectrometry.