You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[2-(2-bromophenoxy)propyl]-2-methyl-3-[(3-methyloxetan-3-yl)methyl]guanidine;hydroiodide by IUPAC nomenclature, provide its molecular formula.
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C16H25BrIN3O2
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