Monobenzyl phthalate-d4 is the deuterium labeled Monobenzyl phthalate. Monobenzyl phthalate (2-((Benzyloxy)carbonyl)benzoic acid) is the urinary metabolite exposuring to phthalates, such as, diethylhexyl phthalate (DEHP)[1].
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]. Meiping Tian, et al. Positive Association of Low-Level Environmental Phthalate Exposure With Sperm Motility Was Mediated by DNA Methylation: A Pilot Study. Chemosphere. 2019 Apr;220:459-467.