(±)-Mephenesin59-47-233 % similar Oxprenolol hydrochloride6452-73-933 % similar Guaifenesin93-14-133 % similar Sr-182922095432-55-433 % similar Tulobuterol hydrochloride56776-01-333 % similar Carvedilol72956-09-331 % similar (+)-Timolol maleate26839-77-031 % similar Timolol maleate26921-17-531 % similar Propafenone54063-53-531 % similar