110608-77-0 2-Benzimidazolethiol, 5-nitro- 2-Benzimidazolinethione, 5-nitro- 2-Mercapto-5-nitrobenzimidazole 2360-38-5 2H-Benzimidazole-2-thione, 1,3-dihydro-5-nitro- 5-Nitro-2-benzimidazolethiol 5-Nitro-2-mercaptobenzimidazole 6325-91-3 NSC 31137