You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 11,12-bis(4-phenylphenyl)indolo[2,3-a]carbazole;11,12-diphenylindolo[2,3-a]carbazole;7-phenyl-5-[4-(9-phenylcarbazol-3-yl)phenyl]indolo[2,3-b]carbazole;12-(2-phenylphenyl)-11-(4-phenylphenyl)indolo[2,3-a]carbazole into its molecular formula.
user
C162H107N9
assistant