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For the molecule named 21-[7-[7-(9,9-dimethylfluoren-2-yl)naphthalen-2-yl]naphthalen-2-yl]pentacyclo[12.8.0.02,7.08,13.015,20]docosa-1(14),2,4,6,8,10,12,15,17,19,21-undecaene;5-[3-[6-(9,9-dimethylfluoren-2-yl)naphthalen-2-yl]phenyl]benzo[c]phenanthrene;5-[4-[4-(9,9-dimethylfluoren-2-yl)naphthalen-1-yl]phenyl]benzo[c]phenanthrene;5-[4-[6-(9,9-dimethylfluoren-2-yl)naphthalen-2-yl]phenyl]benzo[c]phenanthrene;5-[4-[7-(9,9-dimethylfluoren-2-yl)naphthalen-2-yl]phenyl]benzo[c]phenanthrene by IUPAC nomenclature, provide its molecular formula.
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C253H174
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