2-Propanol, 1-[2-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-;ortho-Metoprolol;1-(IsopropylaMino)-3-(2-(2-Methoxyethyl)phenoxy)propan-2-ol;Metoprolol EP IMpurity E;(2RS)-1-[2-(2-Methoxyethyl)phenoxy]- 3-[(1-methylethyl)amino]propan-2-ol;Metoprolol EP Impurity E (Ortho Metoprolol);Metoprolol Impurity 5(Metoprolol EP Impurity E);Metoprolol-5