You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (8S,9S,10S,13S,14S)-9,16-difluoro-10,13-dimethyl-8,11,12,14,15,16-hexahydro-7H-cyclopenta[a]phenanthrene-17,17-diol .
user
C19H24F2O2
assistant