You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-dibenzofuran-2-ylphenyl)-N-[4-(4-naphthalen-1-ylphenyl)phenyl]-9,9-diphenylfluoren-4-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C65H43NO
assistant