Telmisartan Impurity-B CAS No. : 1026353-20-7Molecular Formula: C33H30N4O2Molecular Weight : 514.62Chemical Name : 4′-[[7-Methyl-5-(1-Methyl-1H-benzimidazol-2-yl)-2-propyl-1H benzimidazol-1-yl] methyl] biphenyl-2-carboxylic acid