Candesartan Cilexetil EP Impurity I

Chemical Name: Candesartan Methyl Ester ; 2-Ethoxy-1-[[2-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1?-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic acid methyl ester ;