You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-[2-(4-chlorophenyl)-2-oxoethyl]-2-(4-methylphenyl)-1,1-dioxo-1lambda6,2,4-benzothiadiazin-3-one into molecular formula.
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C22H17ClN2O4S
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