You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[(5R,14R)-3-hydroxy-4,4,10,13,14-pentamethyl-2,3,5,6,7,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-yl]-6-methylhept-5-enoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H50O3
assistant