You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(4-methylphenyl)-N-[2-[2-(2-phenylcarbazol-9-yl)phenyl]phenyl]dibenzofuran-2-amine by IUPAC nomenclature, provide its molecular formula.
user
C49H34N2O
assistant