You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(4-phenylphenyl)phenyl]-3-spiro[fluorene-9,9'-xanthene]-3-yl-N-(4-spiro[fluorene-9,9'-xanthene]-2-ylphenyl)aniline;N-(4-phenylphenyl)-3-spiro[fluorene-9,9'-xanthene]-3-yl-N-(4-spiro[fluorene-9,9'-xanthene]-2-ylphenyl)aniline;2-phenyl-N-(3-spiro[fluorene-9,9'-xanthene]-3-ylphenyl)-N-(4-spiro[fluorene-9,9'-xanthene]-2-ylphenyl)aniline;3-phenyl-N-(3-spiro[fluorene-9,9'-xanthene]-3-ylphenyl)-N-(4-spiro[fluorene-9,9'-xanthene]-2-ylphenyl)aniline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C302H192N4O8
assistant