p-Tolylpinacolboronate-d3 (p-Tolylboronic acid pinacol ester-d3) is the deuterium labeled 4,4,5,5-Tetramethyl-2-(p-tolyl)-1,3,2-dioxaborolane (HY-N0350)[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