83044-88-6 Benzenesulfonic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino)bis(5-methyl-, dipotassium salt Dipotassium 4,4'-((9,10-dihydro-9,10-dioxo-1,4-anthrylene)diimino)bis(toluene-3-sulphonate) EINECS 280-170-2