英文别名Metoprolol EP Impurity M; 1,3-bis(propan-2-ylamino)propan-2-ol; 1,3-Bis((1-methylethyl)amino)propan-2-ol; Metoprolol Impurity M; 2-Propanol, 1,3-bis[(1-methylethyl)amino]-; 1,3-Bis[(1-methylethyl)amino]-2-propanol; Metoprolol tartrate impurity M; Metoprolol Impurity 30