You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R,5R,13R)-11-hydroxy-4,5,9,9,13,20,20-heptamethyl-24-oxahexacyclo[17.3.2.01,18.04,17.05,14.08,13]tetracos-11-en-10-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H46O3
assistant