You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-ethyl-1-methyl-2-[[1-(methylsulfonylmethyl)cyclopropyl]methyl]-1-[2-(oxan-4-yl)ethyl]guanidine into its molecular formula.
user
C17H33N3O3S
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