2,7-ANTHRACENEDISULFONIC ACID, 9,10-DIHYDRO-4,5-DIAMINO-9,10-DIOXO-1-HYDROXY-, D 2,7-Anthracenedisulfonic acid, 9,10-dihydro-4,5-diamino-9,10-dioxo-1-hydroxy-, disodium salt 73651-49-7 Azurol alizarinovy SW [Czech]