You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl 4-[N-ethyl-N'-[2-[3-(methylcarbamoyl)phenyl]ethyl]carbamimidoyl]piperazine-1-carboxylate;hydroiodide into its molecular formula.
user
C20H32IN5O3
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