Synonyms: dipotassium 4,4'-[(9,10-dihydro-9,10-dioxo-1,4-anthrylene)diimino]bis(toluene-3-sulphonate);Dipotassium 4,4'-[(9,10-dihydro-9,10-dioxo-1,4-anthrylene) diimino]bis(toluene-3-sulphonate) Dipotassium 4,4'-[(9,10-dihydro-9,10-dioxo-1,4-anthrylene)diimino]bis(toluene-3-sulphonate);2,2'-[(9,10-Dioxoanthracene-1,4-diyl)diimino]bis[5-methylbenzenesulfonic acid potassium] salt;Benzenesulfonic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino)bis(5-methyl-, dipotassium salt;Einecs 280-170-2