You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(2-methoxyethoxymethyl)-N'-methyl-N-[[6-(4-methylpiperazin-1-yl)pyridin-3-yl]methyl]pyrrolidine-1-carboximidamide;hydroiodide into its molecular formula.
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C21H37IN6O2
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