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system
Name the molecular formula for the molecule established as 10-[4-[6,7-dimethyl-3-[4-(9-oxoacridin-10-yl)phenyl]-4a,8a-dihydroquinoxalin-2-yl]phenyl]-2-methylacridin-9-one using the IUPAC nomenclature.
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C49H36N4O2
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