You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (3S,7S,8S,9S,10R,13R,14S,17R)-3,7,10,13-tetramethyl-17-[(2R,5S)-6,6,6-trifluoro-5-hydroxy-5-methylhexan-2-yl]-1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-ol ?
user
C28H45F3O2
assistant