Telmisartan Dimer Ester Impurity

884330-13-6

[1,1′-Biphenyl]-2-carboxylic acid, 4′,4′′′-[(4′-methyl-2′-propyl[2,6′-bi-1H-benzimidazole]-1,1′-diyl)bis(methylene)]bis-, 2,2′-dimethyl ester; 2,2′-Dimethyl 4′,4′′′-[(4′-methyl-2′-propyl[2,6′-bi-1H-benzimidazole]-1,1′-diyl)bis(methylene)]bis[[1,1′-biphenyl]-2-carboxylate]; dimethyl 4,4''-((7'-methyl-2'-propyl-1H,3'H-[2,5'-bibenzo[d]imidazole]-1,3'-diyl)bis(methylene))bis([1,1'-biphenyl]-2-carboxylate);