Used primarily in research and analytical chemistry as a labeled compound for tracing and studying metabolic pathways. It serves as a deuterated analog of 2,4-dinitrophenol, enabling precise detection and quantification in mass spectrometry and NMR studies. Its applications include investigating mitochondrial uncoupling mechanisms and energy metabolism in biological systems. Additionally, it aids in the development of analytical methods for environmental and toxicological studies, particularly in detecting and monitoring phenolic compounds.