1H-Benzimidazole, 2,2'-(1,8-octanediyl)bis- (9CI) 2,2'-Octamethylenebisbenzimidazole 4-26-00-01866 (Beilstein Handbook Reference) 5233-14-7 BRN 0312909 Benzimidazole, 2,2'-octamethylenebis- NSC 220091