You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3R,4R,5R,6R)-2-[[(3S,8S,9S,10R,13R,14S,17R)-6,7-dihydroxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-6-(hydroxymethyl)oxane-3,4,5-triol is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H56O8
assistant