3-(3-acetyl-4-(3-(tert-butylamino)-2-hydroxypropoxy)phenyl)-1,1-diethylurea; N'-[3-Acetyl-4-[3-[(1,1-dimethylethyl)amino]-2-hydroxypropoxy]phenyl]-N,N-diethyl-urea; N'-[3-Acetyl-4-[3-[(1,1-dimethylethyl)amino]-2-hydroxypropoxy]phenyl]-N,N-diethylurea; (R,S)-Celiprolol; (±)-Celiprolol; DL-Celiprolol; Racemic Celiprolol; Selectol; dl-Celiprolol