You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[9-[2-cyano-4-[3-cyano-5-(trifluoromethyl)phenyl]-3-[3-(3,5-dicyanophenyl)carbazol-9-yl]phenyl]carbazol-3-yl]benzene-1,3-dicarbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C55H25F3N8
assistant