(Rac)-Nebivolol-d2,15N is 15N and deuterated labeled (Rac)-Nebivolol (HY-B0203B). (Rac)-Nebivolol ((Rac)-R 065824) is a racemic isomer of Nebivolol. Nebivolol is a selective beta1-adrenergic receptor antagonist with an IC50 value of 0.8 nM. Nebivolol can prevent up-regulation of Nox2/NADPH oxidase and lipoperoxidation in the early stages of ethanol-induced cardiac toxicity. Vasodilatory activity[1][2].