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For the molecule named 3-[(2S)-2-[(3S,5S,10S,13R,17R)-3-(2-aminoethylamino)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]propyl]oxolan-2-one by IUPAC nomenclature, provide its molecular formula.
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C28H48N2O2
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