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 3-[2-(dimethylamino)-2-oxoethyl]-2-hydroxy-5-[[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid is given. What is its corresponding molecular formula?
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C22H21N5O6S
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