convallatoxin and its Impurities

Convallatoxin is a digitalis like compound which is mainly used as a cardiac glycoside since it can inhibit the Na+,K+-ATPase in congestive heart failure or arrythmias, which causes an inotropic effect, same as many other digitalis like compounds.. Reference standards of Convallatoxin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below