You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5-[3-(6-phenylindolo[2,3-b]indol-5-yl)phenyl]benzimidazolo[1,2-a]benzimidazole;5-[3-[5-phenyl-2-(6-phenylindolo[2,3-b]indol-5-yl)indolo[2,3-b]indol-6-yl]phenyl]benzimidazolo[1,2-a]benzimidazole;5-[3-[6-phenyl-2-(6-phenylindolo[2,3-b]indol-5-yl)indolo[2,3-b]indol-5-yl]phenyl]benzimidazolo[1,2-a]benzimidazole .
user
C157H99N19
assistant