You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3S,8R,9S,10R,13R,14S,17R)-3-ethyl-17-[(2R,6S)-6-hydroxy-7,7-dimethyloctan-2-yl]-13-methyl-2,4,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol .
user
C30H52O2
assistant