106050-84-4 2-(2-(3-Iodo-4-hydroxyphenyl)-6-benzimidazolyl)-6-(1-methyl-4-piperazyl)benzimidazole Iodohoechst 33258 Phenol, 2-iodo-4-(5-(4-methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)-2'-yl)-