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What is the molecular formula of the compound with this IUPAC name (8R,9S,13S,14S,17S)-17-(3-hydroxyprop-1-ynyl)-3,3-dimethoxy-13-methyl-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-ol ?
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C23H34O4
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