VERAPAMIL RELATED COMPOUND B (50 MG) (AL-PHA-[2-[[2-(3,4-DIMETHOXYPHENYL)-ETHYL]METHYLA-MINO]ETHYL]-3,4-DIMETHOXY-ALPHA-(1-METHY-LETHYL)-BENZENEACETONITRILE MONOHYDROCHLORIDE) [ 1794-55-4 ]