You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-oxa-9-thiaspiro[5.5]undecan-4-yl-(2,4,5-trimethyloxolan-3-yl)methanol is given. What is its corresponding molecular formula?
user
C17H30O3S
assistant