Synonyms: Benzenesulfonic acid, ((9,10-dihydro-5-hydroxy-9,10-dioxo-1,4-anthracenediyl)bis(imino-2,1-cyclohexanediylmethylene))bis-, sodium salt (1:2);(9,10-Dihydro-5-hydroxy-9,10-dioxo-1,4-anthracenediyl)bis(imino-2,1-cyclohexanediylmethylene)bis(benzenesulfonic acid), disodium salt;Benzenesulfonic acid, ((9,10-dihydro-5-hydroxy-9,10-dioxo-1,4-anthracenediyl)bis(imino-2,1-cyclohexanediylmethylene))bis-, disodium salt;Disodium ((9,10-dihydro-5-hydroxy-9,10-dioxo-1,4-anthrylene)bis(iminocyclohexane-1,2-diylmethylene))bis(benzenesulphonate);sodium 9,10-dioxo-5,8-bis[(2-{[(phenylsulfonyl)oxy]methyl}cyclohexyl)amino]-9,10-dihydroanthracen-1-olate (1:1)