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system
Name the molecular formula for the molecule established as (3S,9S,10R,13R,14R,17R)-10,13-dimethyl-17-[(1S)-1-[3-[(2R)-3-methylbutan-2-yl]oxiran-2-yl]ethyl]-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol using the IUPAC nomenclature.
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C28H44O2
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