Einecs 280-772-5

3-[(4-Ethoxy-3-sulfophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-7-sulfo-6-[(4-sulfophenyl)azo]naphthalen-2-yl]amino]carbonyl]amino]-2-naphthalenesulfonic acid tetrasodium salt

Tetrasodium 3-((4-ethoxy-3-sulphonatophenyl)azo)-4-hydroxy-7-((((5-hydroxy-7-sulphonato-6-((4-sulphonatophenyl)azo)-2-naphthyl)amino)carbonyl)amino)naphthalene-2-sulphonate

tetrasodium 3-[(4-ethoxy-3-sulphonatophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-7-sulphonato-6-[(4-sulphonatophenyl)azo]-2-naphthyl]amino]carbonyl]amino]naphthalene-2-sulphonate