You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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4-chloro-N-[(2S)-1-oxo-1-[(2,4,5-trimethylpyrazol-3-yl)amino]propan-2-yl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
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C16H19ClN4O2
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