Used in pharmaceutical research as a deuterated analog for tracing metabolic pathways and studying drug mechanisms. Its incorporation into compounds aids in enhancing the stability and bioavailability of active pharmaceutical ingredients. Applied in the development of central nervous system drugs due to its structural similarity to neurotransmitters. Also utilized in the synthesis of labeled compounds for NMR and mass spectrometry studies, providing insights into molecular interactions and structural dynamics. Its deuterium labeling allows for precise tracking in pharmacokinetic and pharmacodynamic studies.