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 [2-[2-[4-(difluoromethoxy)phenyl]ethylamino]-2-oxoethyl] 2-(4-chloro-3-methylphenoxy)acetate is given. What is its corresponding molecular formula?
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C20H20ClF2NO5
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