You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 7,14-bis(4-chlorophenyl)-4,11-bis(3,5-dichlorophenyl)-1,4,8,11-tetrazatetracyclo[6.6.0.02,6.09,13]tetradecane-3,5,10,12-tetrone by IUPAC nomenclature, provide its molecular formula.
user
C34H20Cl6N4O4
assistant