You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-(4,6-diphenylpyrimidin-2-yl)phenyl]-9-[4-(9-phenylcarbazol-2-yl)phenyl]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C58H38N4
assistant