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What is the molecular formula of the compound with this IUPAC name (5S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]spiro[1,2,3,4,5,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-6,5'-1,2,4-triazolidine]-3'-thione ?
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C28H49N3S
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