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 4-[2-(3,5-dichloroanilino)-2-oxoethyl]-N-(2-hydroxyethyl)-2,3-dihydro-1,4-benzoxazine-2-carboxamide is given. What is its corresponding molecular formula?
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C19H19Cl2N3O4
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