You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 4-[(8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-propanoyloxy-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthrene-17-carbonyl]sulfanylbutylphosphonic acid is given. What is its corresponding molecular formula?
user
C28H40FO8PS
assistant