You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N,N-diethyl-3-[[N-ethyl-N'-(3-methyl-2-pyrrolidin-1-ylbutyl)carbamimidoyl]amino]propanamide;hydroiodide into molecular formula.
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C19H40IN5O
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