2,2'-((9,10-Dihydro-9,10-dioxo-1,8-anthracenediyl)diimino)bis(5-methylbenzenesulfonic acid), disodium salt 6408-68-0 Benzenesulfonic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,8-anthracenediyl)diimino)bis(5-methyl-, disodium salt Disodium 4,4'-((9,10-dihydro-9,10-dioxo-1,8-anthrylene)diimino)bis(toluene-3-sulphonate) EINECS 229-063-4