You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-carbazol-9-ylphenyl)-N-(4-dibenzofuran-4-ylphenyl)-4-(4-phenylphenyl)aniline;N-[4-(4-carbazol-9-ylphenyl)phenyl]-N-(9,9-dimethylfluoren-2-yl)-9,9-dimethylfluoren-1-amine;9,9-dimethyl-N-(3-phenylphenyl)-N-[4-[9-(2-phenylphenyl)carbazol-3-yl]phenyl]fluoren-3-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C165H120N6O
assistant