You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[9-(2-naphthalen-1-yldibenzofuran-4-yl)-7,8-dihydrocarbazol-3-yl]-9-phenyl-1,2-dihydrocarbazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H36N2O
assistant