2,7-Anthracenedisulfonic acid, 4,5-diamino-9,10-dihydro-1,8-dihydroxy-9,10-dioxo-, disodium salt 2,7-Anthraquinonedisulfonic acid, 4,5-diamino-1,8-dihydroxy-, disodium salt 6370-62-3 Disodium 4,5-diamino-9,10-dihydro-1,8-dihydroxy-9,10-dioxoanthracene-2,7-disulphonate EINECS 228-886-6