You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-phenyl-9-[9-[4-(4-phenylphenyl)-7,8-dihydroquinazolin-2-yl]dibenzofuran-4-yl]carbazole into its molecular formula.
user
C50H33N3O
assistant