2,2'-((9,10-Dihydro-9,10-dioxo-1,4-anthrylene)diimino)bis(5-tert-butylbenzenesulphonic) acid 83006-54-6 Benzenesulfonic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino)bis(5-(1,1-dimethylethyl)- EINECS 280-104-2