CAS: 163685-37-8 Molecular Formula: C18 H31 N O5 Molecular Weight (g/mol): 341.44 Synonym: 1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-3-[4-(2-methoxyethyl)phenoxy]propan-2-ol,Metoprolol Succinate Imp. J (EP),Metoprolol Tartrate Imp. J (EP) IUPAC Name: 1-[2-hydroxy-3-[4-(2-methoxyethyl)phenoxy]propoxy]-3-(propan-2-ylamino)propan-2-ol SMILES: COCCc1ccc(OCC(O)COCC(O)CNC(C)C)cc1