You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 9-dibenzofuran-3-yl-N-phenyl-N-spiro[benzo[a]phenalene-7,9'-xanthene]-3'-ylcarbazol-3-amine is given. What is its corresponding molecular formula?
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C59H36N2O2
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