Amlodipine Di-Phthalimide Impurity

Chemical Name: 4-(2-Chlorophenyl)-6-[[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]methyl]-5-[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-oxobutyl]-1,4-dihydro-2-methyl-3-Pyridinecarboxylic Acid Methyl Ester

Synonym: (E)-3-[2-Butyl-1-[(4-carboxyphenyl)methyl]-imidazol-5-yl]-2-(2-thienyl methyl)-2-propenoic acid monomethanesulfonate ;