You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 2-chloro-N-[1-(2,3-dihydro-1,4-benzodioxin-6-yl)ethyl]-4-[methyl(methylsulfonyl)amino]benzamide into its molecular formula.
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C19H21ClN2O5S
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