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For the molecule named N-[[(3S,9S,10R,13S,14S,17S)-3,17-dihydroxy-10,13-dimethyl-1,2,3,4,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl]methyl]-2-(3,4-dimethoxyphenyl)-N-(naphthalen-1-ylmethyl)acetamide by IUPAC nomenclature, provide its molecular formula.
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C41H49NO5
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