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system
Name the molecular formula for the molecule established as [1-[3-[(4-chlorophenyl)sulfonylamino]-5-(4-chlorophenyl)sulfonylimino-6-oxocyclohexa-1,3-dien-1-yl]-2-oxonaphthalen-1-yl] acetate using the IUPAC nomenclature.
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C30H20Cl2N2O8S2
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