(3R,4S)-Paroxetine-d4 (hydrochloride)
Paroxetine EP impurity D-d4 (hydrochloride) is deuterium labeled (3R,4S)-3-benzo[d][1,3]dioxol-5-yloxy)methyl)-4-(4-fluorophenyl)piperidine (Paroxetine Impurity).
Internal Reference:
cell25sk19465