Gemfibrozil 1-O-beta-glucuronide-d6 is the deuterium labeled Gemfibrozil 1-O-beta-glucuronide (HY-129993). Gemfibrozil 1-O-beta-Glucuronide, a metabolite of Gemfibrozil (CI-719, HY-B0258), is a potent and competitive P450 (CYP) isoform CYP2C8 inhibitor with an IC50 of 4.07 µM[1][2].