Encainide hydrochloride

Formula : C22-H28-N2-O2.Cl-H
CAS : 66794-74-9 

One of the ANTI-ARRHYTHMIA AGENTS, it blocks SODIUM CHANNELS and slows conduction within the His-Purkinje system and myocardium.

Encainide, O-demethyl-

Formula : C21-H26-N2-O2
CAS : 37612-09-02 

Encainide metabolite with longer half-life; identified in plasma of patient receiving encainide orally.