You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[[N-methyl-C-[4-(1-methylpyrazol-4-yl)-3-oxopiperazin-1-yl]carbonimidoyl]amino]-N-propan-2-ylpropanamide by IUPAC nomenclature, provide its molecular formula.
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C16H27N7O2
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