You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-[2-isocyano-6-(trifluoromethyl)phenyl]-3,5-bis[2-(2-methylphenyl)carbazol-9-yl]benzonitrile .
user
C53H33F3N4
assistant