5924-52-7

Einecs 227-654-1 4-hydroxy-3-[(2-hydroxy-4-nitrophenyl)azo]naphthalenesulphonic acid 4-Hydroxy-3-[(2-hydroxy-4-nitrophenyl)azo]-1-naphthalenesulfonic acid 1-Naphthalenesulfonic acid, 4-hydroxy-3-[2-(2-hydroxy-4-nitrophenyl)diazenyl]-