You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-methyl-1-[3-(4-methylpiperidin-1-yl)propyl]-3-[1-(1,3,5-trimethylpyrazol-4-yl)propan-2-yl]guanidine;hydroiodide into its molecular formula.
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C20H39IN6
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