You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-N-[4-(N-[4-(N-naphthalen-1-ylanilino)phenyl]anilino)phenyl]-1-N-[4-(N-[4-(N-[4-(N-naphthalen-1-ylanilino)phenyl]anilino)phenyl]anilino)phenyl]-1-N,4-N-diphenylbenzene-1,4-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C98H73N7
assistant