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 6-chloro-4-methylsulfonyl-N-(pyridin-4-ylmethyl)-2,3-dihydro-1,4-benzoxazine-2-carboxamide is given. What is its corresponding molecular formula?
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C16H16ClN3O4S
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