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 (3R,5S,8R,10S,13R,14R,17R)-17-[(2R,5S)-5,6-dihydroxy-6-methylheptan-2-yl]-3-hydroxy-4,4,10,13-tetramethyl-2,3,5,6,7,8,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene-14-carboxylic acid .
user
C30H50O5
assistant