You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-N,7-N-diphenyl-3-N,7-N-bis(15-phenyl-15-azatetracyclo[10.2.1.05,14.08,13]pentadeca-1(14),2,4,6,8(13),9,11-heptaen-3-yl)dibenzothiophene-3,7-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C64H40N4S
assistant