Verapamil Impurity N Benzeneethanamine, 3,4-dimethoxy-N,N-dimethyl- Verapamil Impurity H (3,4-Dimethoxyphenyl)isopropyl ketone Benzeneethanamine, 3,4-dimethoxy-N-(phenylmethylene)- VERAPAMIL RELATED COMPOUND D (50 MG) (5,5'-[[2-(3,4)DIMETHOXYPHENYL)ETHYL]IMINO]BIS[2-(3,4-DIMETHOXYPHENYL)-2-(1-METHYLETHYL)PENTANENI-TRILE] HYDROCHLORIDE) N,N'-Vis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride P-O-DESMETHYL VERAPAMIL 4-ETHOXY-3-METHOXYPHENYLACETONITRILE 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) Veratraldehyde Verapamil Related Compound A (50 mg) (3,4-Dimethoxy-alpha-[3-(methylamino)propyl]-alpha-(1-methylethyl)-benzeneacetonitrile monohydrochloride) 2-(4-Hydroxy-3-methoxyphenyl)-2-isopropyl-5-[methyl[2-(3,4-dimethoxyphenyl)ethyl]amino]pentanenitrile NSC 609249 N-Methyl-N-(3-chloropropyl)-3,4-dimethoxyphenethylamine S(-)-VERAPAMIL R(+)-VERAPAMIL HYDROCHLORIDE 3,4-Dimethoxy-N-methylphenethylamine hydrochloride