You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-(2,3-dichlorophenyl)-2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-heptadecafluorononanamide by IUPAC nomenclature, provide its molecular formula.
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C15H4Cl2F17NO
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