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 N-(4-methoxy-3-morpholin-4-ylsulfonylphenyl)-2-oxo-3-propan-2-yl-1,3-benzothiazole-6-sulfonamide is given. What is its corresponding molecular formula?
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C21H25N3O7S3
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