Used as a deuterated internal standard in analytical chemistry, particularly in mass spectrometry and NMR spectroscopy, to accurately quantify boric acid and related compounds in environmental, biological, and industrial samples. Its deuterated structure allows for clear differentiation from non-labeled analogs, improving measurement precision. Also employed in studies involving boron metabolism and transport where isotopic tracing is required. Commonly applied in research settings for pharmaceutical development, forensic analysis, and geochemical studies due to its stability and distinct isotopic signature.