Standards; Pharmaceutical/API Drug Impurities/Metabolites;
rac-Keto Labetalol is an impurity of Labetalol is a specific competitive antagonist at both α-and β-adrenergic receptor sites. Labetalol is used as an antihypertensive.
Sybertz, E.J. et al.: J. Pharmacol. Exp. Ther., 218, 435 (1981); Clifton, J.E. et al.: J. Med. Chem., 25, 670 (1982); Goa, K.L. et al.: Drugs, 37, 583 (1989);