You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 6-pyridin-3-yl-2-[[1-(1,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-ylmethyl)azetidin-3-yl]methyl]pyridazin-3-one into its molecular formula.
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C20H22N6O
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