You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(7R,8R,9S,10S,13S,14S,17S)-17-acetyloxy-7,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-10-yl]methyl acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H34O5
assistant