You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[5-(5,5-dimethyl-1,3-dioxan-2-yl)-1H-pyrrol-2-yl]methyl]-1-methylsulfonylpyrrole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H22N2O4S
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