You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[2-[3-[4,6-bis(3,5-ditert-butylphenyl)-1,3,5-triazin-2-yl]-4-(7-phenylindolo[2,3-b]carbazol-5-yl)phenyl]phenyl]-7-phenylindolo[2,3-b]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C91H79N7
assistant