mephenterdrine and its Impurities

It is an adrenergic agent which is a hydrated hemisulfate salt of ethyl(2-methyl-1-phenyl-2-propyl)ammonium. It contains a phenethylamine skeleton and is a cardiac stimulant. Alsoused fortreating low blood pressure. Reference standards of Mephenterdrine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.