You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (3aR,5aR,6R)-3a,5a-dimethyl-1-propan-2-yl-2,3,4,5,6,7-hexahydrocyclohepta[e]inden-6-ol .
user
C19H28O
assistant