You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(9,9-dimethylfluoren-2-yl)-2-[3-[4-[3-[6-(6H-phenalen-2-yl)-2-(3-spiro[fluorene-9,9'-thioxanthene]-4'-ylphenyl)pyrimidin-4-yl]phenyl]spiro[fluorene-9,9'-thioxanthene]-4'-yl]phenyl]-6-phenylpyrimidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C110H70N4S2
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