You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N,6-N-bis[3-(9-phenylfluoren-9-yl)phenyl]-1-N,6-N-bis(3-phenylphenyl)pyrene-1,6-diamine;1-N,6-N-bis[3-(9-phenylfluoren-9-yl)phenyl]-1-N,6-N-bis(3-propan-2-ylphenyl)pyrene-1,6-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C174H124N4
assistant