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Under IUPAC nomenclature, a molecule named 4,9-bis(3,6-dimethoxy-9H-fluoren-9-yl)-15-methyl-5,8,14,18-tetrathiapentacyclo[10.6.0.02,6.07,11.013,17]octadeca-1,3,6,9,11,13(17),15-heptaene is given. What is its corresponding molecular formula?
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C45H32O4S4
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