You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[6-(3-cyano-5-isocyanophenyl)-9-[2-(3-cyanophenyl)-4-(2,6-diphenylpyrimidin-4-yl)-6-(3-isocyanophenyl)phenyl]carbazol-3-yl]-5-isocyanobenzonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C64H33N9
assistant