You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-[(4-methoxy-3-prop-2-ynoxyphenyl)methyl]-2-methyl-3-(2-pyridin-2-ylethyl)guanidine;hydroiodide is given. What is its corresponding molecular formula?
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C20H25IN4O2
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