2-Anthracenesulfonic acid, 1-amino-4-(((aminosulfonyl)-4-methylphenyl)amino)-9,10-dihydro-9,10-dioxo-, monosodium salt 85280-21-3 Azo dye compd. EINECS 286-574-5 Sodium 1-amino-4-(((aminosulphonyl)-4-methylphenyl)amino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate