You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N,6-N-bis(3,6-dimethyldibenzofuran-4-yl)-1-N,6-N-bis(3-methyldibenzofuran-4-yl)-3,8-di(propan-2-yl)pyrene-1,6-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C76H60N2O4
assistant