Ethacizine Hydrochloride and its Impurities

Ethacizine is used to treat ventricular and supraventricular arrhythmias, especially those that are associated with organic heart disease, and Linked to Wolff–Parkinson–White syndrome. It is a Class Ic antiarrhythmic agent used primarily in Russia and some CIS countries for treating serious heart rhythm disorders. Reference standards of Ethacizine Hydrochloride API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.