1 HT 2'-(4-hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 1.000 2 58F P-iodo hoechst 0.939 3 IA 2'-(3-iodophenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 0.939 4 4L1 5-(4-methylpiperazin-1-yl)-2'-(pyridin-2-yl)-1h,1'H-2,5'-bibenzimidazole 0.909 5 BBZ 2'-(4-dimethylaminophenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 0.886 6 HT1 2'-(4-ethoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 0.886 7 IB 2'-(3-iodo-4-methoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 0.886 8 RO2 3-[5-[5-(4-methyl-piperazin-1-yl)-1h-imidazo[4,5-B]pyridin-2-yl]-benzimidazol-2-yl]-phenol 0.882 9 MBB 2'-(3-methyl-4-dimethylaminophenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-benzimidazole 0.861 10 IBB 5-(2-imidazolinyl)-2-[2-(4-hydroxyphenyl)-5-benzimidazolyl]benzimidazole 0.722