70210-07-0 Benzenesulfonic acid, 4-((2,4-dihydroxy-5-((4-((4-sulfophenyl)azo)phenyl)azo)phenyl)azo)-, disodium salt Disodium 4-((2,4-dihydroxy-5-((4-((4-sulphonatophenyl)azo)phenyl)azo)phenyl)azo)benzenesulphonate EINECS 274-404-2