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system
Name the molecular formula for the molecule established as 4-[[2-[(4aS,7aS)-1,2,3,4,4a,5,7,7a-octahydropyrrolo[3,4-b]pyridin-6-yl]-2-oxoethyl]amino]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione using the IUPAC nomenclature.
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C22H25N5O5
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