Candesartan cilexetil, an antihypertensive agent containing an extended double ester chain

In the title compound (systematic name: ()-1-[(cyclo­hex­yloxy)carbonyl­oxy]ethyl 2-ethoxy-1-{[2′-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl}-1H-benzimidazole-7-carboxyl­ate), C₃₃H₃₄N₆O₆, the biphenyl­tetrazole moiety projects almost perpendicularly from the benzimidazole group. The planes of the three rings in the biphenyl­tetrazole moiety are staggered with respect to one another. In the benzimidazole system, the 2-ethoxy group is extended in the opposite direction with respect to the CH(Me)OCOO-c-hexyl double ester chain. An N—H...N hydrogen bond joins [010]-translated molecules to form a chain running along the b axis.