4'-[(1,4'-Dimethyl-2'-propyl[2,6'-bi-1H-benzimidazol]-1'-yl)methyl]-[1,1'-biphenyl]-2-carbonitrile-d7 is an intermediate used in the synthesis of Telmisartan-d7 (T017003), which is labelled Telmisartan (T017000). Telmisartan is an angiotensin II receptor antagonist.