1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-6-((5-((2-bromo-1-oxo-2-propenyl)amino)-2-sulfophenyl)azo)-5-hydroxy-, trisodium salt 70224-86-1 EINECS 274-457-1 Trisodium 4-(acetylamino)-6-((5-((2-bromo-1-oxoallyl)amino)-2-sulphonatophenyl)azo)-5-hydroxynaphthalene-1,7-disulphonate