You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-phenyl-4-[7-(9-phenylfluoren-9-yl)dibenzofuran-1-yl]-6-(3-phenylphenyl)-1,3,5-triazine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C52H33N3O
assistant