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Can you give the molecular formula of the molecule (5'S,11'R,13'S,17'S)-11'-[4-(dimethylamino)phenyl]-13'-methyl-17'-(3-methylbut-1-ynyl)spiro[1,3-dioxolane-2,3'-2,4,6,7,8,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene]-5',17'-diol ?
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C33H45NO4
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