You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R)-4-[(3S,5R,7R,8S,9R,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethyl-12-oxo-1,2,3,4,5,6,7,8,9,11,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H37O5-
assistant