You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,10R,13R)-10,13-dimethyl-17-[(1S)-1-[(2S,5R,6S)-5-methyl-6-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxyoxan-2-yl]ethyl]-3-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,2,3,4,5,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-6-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C39H62O13
assistant