You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]pyrrol-2-yl-(2-hydrazinyl-6-methylpyrimidin-4-yl)methanone into molecular formula.
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C13H19N5O
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