Used primarily in research and analytical settings, this compound serves as a stable isotope-labeled internal standard in mass spectrometry. It aids in the accurate quantification and identification of meprobamate and its metabolites in biological samples, such as blood or urine. This is particularly valuable in forensic toxicology, pharmaceutical studies, and clinical research, where precise measurement is critical. Its deuterium labeling ensures minimal interference with the analyte, enhancing the reliability of analytical results.