disodium 4,4'-[(9,10-dihydro-5,8-dihydroxy-9,10-dioxo-1,4-anthrylene)diimino]bis[3,5-diethyltoluene-2-sulphonate]

3,3'-[(9,10-Dihydro-5,8-dihydroxy-9,10-dioxoanthracene)-1,4-diyldiimino]bis(2,4-diethyl-6-methylbenzenesulfonic acid)disodium salt

Benzenesulfonic acid, 3,3'-[(9,10-dihydro-5,8-dihydroxy- 9,10-dioxo-1,4-anthracenediyl)diimino]bis [2,4-diethyl-6-methyl-, disodium salt