You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-[6-methyl-1-[6-methyl-2-[4-(N-(4-phenylphenyl)anilino)phenyl]naphthalen-1-yl]naphthalen-2-yl]phenyl]-N,4-diphenylaniline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C70H52N2
assistant