1,3-Benzodiazole 1,3-Diazaindene 116421-27-3 1H-Benzimidazole 25463-25-6 3-Azaindole 5-23-06-00196 (Beilstein Handbook Reference) 51-17-2 79351-71-6 AI3-03737 Azindole BENZIMIDAZOLE BRN 0109682 BZI Benziminazole Benzoglyoxaline Benzoimidazole CCRIS 5967 EINECS 200-081-4 HSDB 2797 N,N'-Methenyl-o-phenylenediamine NSC 759 o-Benzimidazole