5-[[4-cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl]-[2-(3,4-dimethoxyphenyl)ethyl]amino]-2-(3,4-dimethoxyphenyl)-2-propan-2-ylpentanenitrile hydrochloride; Venlafaxine related compound D; 5,5'-((2-(3,4-Dimethoxyphenyl)ethyl)imino)bis(2-(3,4-dimethoxyphenyl)-2-(1-methylethyl)pentanenitrile)hydrochloride; Verapamil Related Compound D; alpha,alpha'-[[[2-(3,4-Dimethoxyphenyl)ethyl]imino]di-3,1-propanediyl]bis[3,4-dimethoxy-alpha-(1-methylethyl)benzeneacetonitrile] monohydrochloride; Verapamil EP Impurity M HCl; Verapamil EP Impurity M; Verapamil Impurity 13