You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-[4-[4-[4-[3,6-bis[9-(9,9-dimethylfluoren-2-yl)carbazol-3-yl]carbazol-9-yl]phenyl]-6-phenyl-1,3,5-triazin-2-yl]phenyl]-3,6-bis[9-(9,9-dimethylfluoren-2-yl)carbazol-3-yl]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C153H105N9
assistant