You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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4-chloro-N-[1-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]-3-methyl-1-oxobutan-2-yl]-3-nitrobenzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24ClN5O5
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