You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
17-(5-hydroxy-5-methylhexan-2-yl)-3,10,13-trimethyl-1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H46O2
assistant