You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[(3-fluoro-4-hydroxyphenyl)methyl]-2-methyl-3-[2-(2-methylphenoxy)propyl]guanidine;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C19H25FIN3O2
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