You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 9-[4-[3,6-bis(2-phenylpyridin-4-yl)carbazol-9-yl]-2-isocyano-5-(2-isocyano-6-methylphenyl)phenyl]-3,6-bis(2-phenylpyridin-4-yl)carbazole ?
user
C83H52N8
assistant