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What is the molecular formula of the compound with this IUPAC name [(1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bS)-9-acetyloxy-1-[3-(butan-2-ylamino)prop-1-en-2-yl]-5a,5b,8,8,11a-pentamethyl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysen-3a-yl]methyl acetate ?
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C38H63NO4
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