1,?-Anthracenedisulfonic acid, 4-((4-(acetylamino)phenyl)amino)-1-amino-,9,10-dihydro-9,10-dioxo-, disodium salt 84800-53-3 Disodium 4-((4-(acetylamino)phenyl)amino)-1-amino-9,10-dihydro-9,10-dioxoanthracene-2,x-disulphonate EINECS 284-166-1 NSC 295304