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-1-[3-(dimethylamino)-4-ethoxyphenyl]-3-(7-methoxy-1,3-benzodioxol-5-yl)prop-2-en-1-one into its molecular formula.
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C21H22ClNO5
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