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nature : also known as propranolol. Hydrochloride is a white crystalline powder. No foul. Mei Wei Tian hardships later. Soluble in water and ethanol, is not soluble in benzene, ether. Melting point of 162 ° C to 165. Β-adrenergic receptor blockers. Cardiomyopathy can inhibit spontaneous, conduction function and myocardial contractility, reducing myocardial oxygen consumption. For the treatment of arrhythmia, can also be used for premature ventricular contractions and angina. Oxygen from naphthalene-1 ,2-propylene oxide and 2-Propanol by amination and prepared.
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