6-chloro-3-[1-oxido-1-[3-(2-oxo-3a,7a-dihydro-3H-benzimidazol-1-yl)propyl]piperidin-1-ium-4-yl]-3a,7a-dihydro-1H-benzimidazol-2-one

cis-4-(5-Chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]piperidine 1-oxide