potassium 9,10-dihydro-9,10-dioxoanthracene-1-sulphonate 9,10-DIHYDRO-9,10-DIOXO-1-ANTHRACENESULFONIC ACID POTASSIUM SALT 1-AnthraquinoneSulvonicAcid,PotassiumSalt Antrachinon-1-sulfonsure, Kaliumsalz 9,10-dihydro-9,10-dioxo-1-anthracenesulfonic acipotassium salt anthraquinone-1-sulfonic acid, potassium salt Potassium 9,10-dioxo-9,10-dihydro-1-anthracenesulfonate Potassium anthraquinone-1-sulphonate