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system
Name the molecular formula for the molecule established as (3aS,6R,6aS,9aR,10aS,10bR)-8-(bromomethyl)-6a,9a-dichloro-6-(5-chloro-2-hydroxyphenyl)-2-(4-chlorophenyl)-3a,4,6,10,10a,10b-hexahydroisoindolo[5,6-e]isoindole-1,3,7,9-tetrone using the IUPAC nomenclature.
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C27H19BrCl4N2O5
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