You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S,5S,8R,9S,10S,13R,14S,17R)-17-[(2R)-5,6-dimethylhept-4-en-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol into its molecular formula.
user
C28H48O
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