You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[3-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl)phenoxy]-N-methylbut-2-en-1-amine by IUPAC nomenclature, provide its molecular formula.
user
C19H14F17NO
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