You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[(1-phenylpyrazol-3-yl)methyl]-3,4-dihydro-2H-1,5-benzodioxepine-7-sulfonamide by IUPAC nomenclature, provide its molecular formula.
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C19H19N3O4S
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