You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[2-(2-chloro-6-fluorophenyl)cyclopropyl]-2-(3,4-dihydro-2H-chromen-4-yl)guanidine;hydroiodide into its molecular formula.
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C19H20ClFIN3O
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