Propafenone USP Related Compound B as Hydrochloride;Propafenone Hydrochloride Impurity B as Hydrochloride;Propafenone Hydrochloride EP Impurity B as Hydrochloride;(2E)-1-[2-[(2RS)-
2-Hydroxy-3-(propylaMino)propoxy]phenyl]-
3-phenylprop-2-en-1-one Hydrochloride