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 2-[(6-fluoro-4H-1,3-benzodioxin-8-yl)methyl]-1-[2-(methoxymethyl)phenyl]guanidine;hydroiodide is given. What is its corresponding molecular formula?
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C18H21FIN3O3
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