You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-[3-[3-(1-aminoethyl)piperidin-1-yl]-1-(2,6-difluorophenyl)-3-oxopropyl]acetamide;hydrochloride into molecular formula.
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C18H26ClF2N3O2
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