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 5-[5-[4-(1,1-dioxo-1,4-thiazinan-4-yl)phenyl]-1,3-thiazol-2-yl]-1-methylpyridin-2-one is given. What is its corresponding molecular formula?
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C19H19N3O3S2
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