This compound is primarily utilized as a deuterated internal standard in analytical chemistry, particularly in mass spectrometry and gas chromatography. Its application is crucial for the accurate quantification and identification of phthalates in various samples, including environmental, biological, and industrial matrices. The deuterated form ensures minimal interference with the analytes, enhancing the precision and reliability of the measurements. Additionally, it is employed in research studies to investigate the behavior, distribution, and metabolism of phthalates in different systems, contributing to a deeper understanding of their environmental and health impacts.