You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-butyl-4-N-(1,1-dioxothiolan-3-yl)-4-N-ethyl-1-N-methylcyclohexane-1,4-dicarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H34N2O4S
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