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Under IUPAC nomenclature, a molecule named 6-[6-(1,2,4b,8a-tetramethyl-9-phenyl-5,6,7,8-tetrahydrocarbazol-3-yl)-9H-fluoren-3-yl]-4a,7,8,9a-tetramethyl-9-phenyl-1,2,3,4-tetrahydrocarbazole is given. What is its corresponding molecular formula?
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C57H60N2
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