You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[4-[5-(7-dibenzofuran-2-yl-9,9-dimethylfluoren-2-yl)-10-methylphenazin-2-yl]phenyl]-N-phenylnaphthalen-1-amine by IUPAC nomenclature, provide its molecular formula.
user
C62H45N3O
assistant