You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2,5-dimethyl-N-methylsulfonylanilino)-N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H28N4O4S
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