You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[4-(azepan-1-ylsulfonyl)phenyl]-N-(2,3-dihydro-1,4-benzodioxin-5-ylmethyl)-N-ethylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34N2O5S
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