C.I.61800

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

2,2'-[(9,10-Dihydro-9,10-dioxoanthracene-1,8-diyl)diimino]bis[5-methylbenzenesulfonic acid sodium] salt