This compound is primarily used in research and analytical chemistry as a labeled internal standard or tracer in mass spectrometry and NMR studies. Its deuterated structure allows for precise tracking and quantification of its non-deuterated counterpart or related compounds in complex biological or chemical matrices. It is particularly valuable in studies involving the metabolism, distribution, or environmental fate of aromatic amines, as it provides a stable and distinguishable reference point. Additionally, it aids in the development of analytical methods for detecting and quantifying similar compounds in environmental samples, pharmaceuticals, or biological systems.