You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the molecule N'-[3-(2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl)propanoyl]-4-oxo-3-pentylphthalazine-1-carbohydrazide ?
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C24H30N6O5
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