You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-(3,4-difluorophenyl)-2-[2,3-dihydro-1,4-benzodioxin-6-ylmethyl(methyl)amino]acetamide is given. What is its corresponding molecular formula?
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C18H18F2N2O3
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