4-Methylbiphenyl-d3 (4-Phenyltoluene-d3) is the deuterium labeled 4-Methylbiphenyl (HY-W017077). 4-Methylbiphenyl is an endogenous metabolite[1].
References
[1] Russak, et sl. Impact of deuterium substitution on the pharmacokinetics of pharmaceuticals. Annals of Pharmacotherapy 53.2 (2019): 211-236. DOI:10.1080/09593330.2018.1515990
