Used in the synthesis of deuterated compounds for research and development in pharmaceuticals, particularly in drug metabolism studies where deuterium labeling helps track and analyze the behavior of molecules within biological systems. It serves as a key intermediate in creating deuterated analogs of active pharmaceutical ingredients, enhancing the stability and efficacy of drugs. Additionally, it is applied in nuclear magnetic resonance (NMR) spectroscopy as a labeled compound to improve the clarity and precision of molecular structure analysis.