You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[9-(4-phenylphenyl)carbazol-3-yl]-9-[4-[2-(4-pyridin-3-ylphenyl)benzimidazol-1-yl]phenyl]carbazole into molecular formula.
user
C60H39N5
assistant