This deuterated morpholine is used as a starting material in the synthesis of isotope-labeled chemicals for studying reaction mechanisms and biochemical processes. The replacement of hydrogen atoms with deuterium allows for precise tracking of molecular movements and transformations in scientific experiments. It is also employed in pharmacological research to investigate the metabolism and pharmacokinetics of various drugs without altering their original chemical structures. Additionally, it supports applications in nuclear magnetic resonance (NMR) spectroscopy for analyzing labeled compounds and in organic synthesis for tracing reaction pathways.