p-Hydroxybenzaldehyde-d4 is the deuterium labeled p-Hydroxybenzaldehyde. p-Hydroxybenzaldehyde is a one of the major components in Dendrocalamus asper bamboo shoots, with antagonistic effect on GABAA receptor of the α1β2γ2S subtype at high concentrations.
Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs[1].
References:
[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.
[2]. Zhang J, et al. The Effect of 4-hydroxybenzaldehyde on the γ-aminobutyric Acid Type A Receptor. Malays J Med Sci. 2017 Mar;24(2):94-99.