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-methyl-6-[4-(3-phenylprop-2-enoyl)piperazin-1-yl]sulfonyl-4H-1,4-benzoxazin-3-one is given. What is its corresponding molecular formula?
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C22H23N3O5S
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