You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[9-(2,4-diphenylphenyl)dibenzofuran-3-yl]-4-(6-phenylnaphthalen-2-yl)-6-(4-phenylphenyl)-1,3,5-triazine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C61H39N3O
assistant