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Name the molecular formula for the molecule established as 1-ethyl-2-[[4-(2-methylpropyl)morpholin-2-yl]methyl]-3-[3-(3-propan-2-yl-1,2,4-oxadiazol-5-yl)propyl]guanidine;hydroiodide using the IUPAC nomenclature.
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C20H39IN6O2
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