4-Nitro-N-{4,5,8-tris[(4-methylphenyl)amino]-9,10-dioxo-9,10-dihydroanthracen-1-yl}benzamide;benzamide, N-[9,10-dihydro-4,5,8-tris[(4-methylphenyl)amino]-9,10-dioxo-1-anthracenyl]-4-nitro-
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