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What is the molecular formula of the molecule identified by 1-[7-[(E)-2-[7-(4,4-dimethyl-2,3-dihydroquinolin-1-yl)-9,9-dimethylfluoren-2-yl]ethenyl]phenanthren-2-yl]-4,4-dimethyl-2,3-dihydroquinoline ?
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C53H50N2
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