You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named [(3S,4R)-2-methoxy-4-[(4-methoxyphenyl)methoxy]-5,5-bis(methylsulfonyloxymethyl)oxolan-3-yl] acetate is given. What is its corresponding molecular formula?
user
C19H28O12S2
assistant