You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(2-methoxyphenyl)methyl]-2-methyl-3-[3-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]guanidine;hydroiodide into its molecular formula.
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C19H25IN6O
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