This chemical is primarily utilized in research and development, particularly in the field of analytical chemistry. It serves as a stable isotope-labeled internal standard for the accurate quantification of its non-deuterated counterpart in various biological samples. This application is crucial in studies involving the detection and measurement of heterocyclic aromatic amines (HAAs), which are compounds of interest due to their potential mutagenic and carcinogenic properties. By using this deuterated compound, researchers can achieve more precise and reliable results in mass spectrometry and other analytical techniques, enhancing the understanding of HAAs' behavior and impact in biological systems.