You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 9-[3-[4-[3,5-di(dibenzofuran-2-yl)phenyl]-6-phenyl-1,3,5-triazin-2-yl]phenyl]carbazole ?
user
C57H34N4O2
assistant