rac Des(isopropylamino) Acebutolol Diol; N-[3-Acetyl-4-[(2RS)-2,3-dihydroxypropoxy]phenyl]butanamide; (+/-)-N-[3-Acetyl-4-(2,3-dihydroxypropoxy)phenyl]butanamide; N-(3-Acetyl-4-(2,3-dihydroxypropoxy)phenyl)butyramide;Acebutolol Hydrochloride - Impurity F ;