You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-(hydroxymethyl)-4,5,6,8-tetramethyl-4-(3-methylpentan-3-yl)-3,9-dioxabicyclo[4.2.1]nonane-5,7-diol ?
user
C18H34O5
assistant