You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3S,5R,6R,10R,13R)-17-(7-hydroxy-6-methylheptan-2-yl)-10,13-dimethyl-1,2,3,4,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-3,5,6-triol by IUPAC nomenclature, provide its molecular formula.
user
C27H48O4
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