You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-(4-dibenzothiophen-4-ylphenyl)-4-(3-oxapentacyclo[11.8.0.02,10.04,9.016,21]henicosa-1(13),2(10),4(9),5,7,11,14,16,18,20-decaen-5-yl)-N-[4-(9-phenylfluoren-9-yl)phenyl]aniline by IUPAC nomenclature, provide its molecular formula.
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C69H43NOS
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