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Name the molecular formula for the molecule established as 5,6-dibromo-2-[2-(5,6-dibromo-1,3-dioxo-3a,4,5,6,7,7a-hexahydro-4,7-epoxyisoindol-2-yl)ethyl]-3a,4,5,6,7,7a-hexahydro-4,7-epoxyisoindole-1,3-dione using the IUPAC nomenclature.
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C18H16Br4N2O6
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