You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[(2-methoxypyridin-3-yl)methyl]-2-methyl-3-[(4-methyl-2-propan-2-yloxyphenyl)methyl]guanidine;hydroiodide into molecular formula.
user
C20H29IN4O2
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