You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(8S,9S,10S,11S,13S,14S,16R,17R)-9-chloro-4-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-propanoyloxy-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] propanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H36ClFO7
assistant