23491-44-3 23491-45-4 (TRIHYDROCHLORIDE) AIDS-017408 AIDS017408 Bisbenzimidazole Bisbenzimide Bisbenzimide (trihydrochloride) HOE 33258 (trihydrochloride) Hoechst 33258 (trihydrochloride) NSC322921 (TRIHYDROCHLORIDE) Phenol, 4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]- Pibenzimol p-(5-(5-(4-Methyl-1-piperazinyl)-1H-2-benzimidazolyl)-1H-2-benzimidazolyl)phenol