You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-[(5-fluoro-2,3-dihydro-1-benzofuran-2-yl)methyl]-4-N,4-N-dimethylbenzene-1,4-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H19FN2O
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