Used primarily in research and analytical chemistry as a labeled internal standard for the quantification of N-nitrosodimethylamine (NDMA) in various samples. Its deuterated form allows for precise detection and measurement in complex matrices, such as environmental samples, food products, and biological fluids, using techniques like gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-mass spectrometry (LC-MS). This aids in studies related to NDMA's carcinogenic properties, exposure assessment, and regulatory compliance in industries where NDMA contamination is a concern.