1-(2-methylsulfanylphenoxy)-3-(propan-2-ylamino)propan-2-ol 1-(isopropylamino)-3-(2-methylsulfanylphenoxy)propan-2-ol 1-(isopropylamino)-3-[2-(methylthio)phenoxy]propan-2-ol Tiprenolol hydrochloride [USAN]