You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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4-[(4Z)-3-hydroxy-5-methyl-4-[(3-nitrophenyl)hydrazinylidene]-3H-pyrazol-2-yl]benzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
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C16H16N6O5S
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