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What is the molecular formula of the compound with this IUPAC name 2,8-bis(2,4-difluorophenyl)-5,11-bis[4-(2,4-difluorophenyl)phenyl]-6,12-diphenyltetracene;fluoromethane;molecular fluorine;2,6,8,12-tetraphenyl-5,11-bis(4-phenylphenyl)tetracene ?
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