You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(3R,5S,8R,9R,10S,13S,14R,17R)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate by IUPAC nomenclature, provide its molecular formula.
user
C23H38O3
assistant