(N-(2-hydroxy-3-(4-(2-methoxyethyl)phenoxy)propyl)-N-isopropylnitrous amide); N-(2-Hydroxy-3-(4-(2-methoxyethyl)phenoxy)propyl)-N-isopropylnitrous amide;N-Nitroso Metoprolol; N-(2-Hydroxy-3-(4-(2-methoxyethyl)phenoxy)propyl)-N-isopropylnitrous amide;N-(2-hydroxy-3-(4-(2-methoxyethyl)phenoxy)propyl)-N-isopropylnitrous amide; 1-[4-(2-Methoxyethyl)phenoxy]-3-[(1-methylethyl)nitrosoamino]-2-propanol;