Anthracene-d10 is widely used as an internal standard in analytical chemistry, particularly in gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). Its deuterated structure ensures minimal interference with the analytes, making it ideal for accurate quantification of polycyclic aromatic hydrocarbons (PAHs) in environmental samples, such as soil, water, and air. It is also employed in research studies to track the behavior and degradation of PAHs in various systems. Additionally, Anthracene-d10 serves as a reference compound in spectroscopic studies, aiding in the calibration and validation of instruments due to its stable isotopic labeling.