You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[2-[9-(9,9-diphenylfluoren-2-yl)carbazol-2-yl]phenyl]phenyl]-N-phenylnaphthalen-1-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C65H44N2
assistant