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What is the molecular formula of the molecule (7S,8S,11R,13S,14S,17R)-11-[4-(dimethylamino)phenyl]-7,13-dimethylspiro[1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-17,2'-oxolane]-3-one ?
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C30H39NO2
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