2538-79-6

1-(2-Hydroxy-1-naphtylazo)-2-hydroxynaphthalene-4-sulfonic acid 3-Hydroxy-4-(2-hydroxy-1-naphtylazo)-1-naphthalenesulfonic acid 4-(2-Hydroxy-1-naphtylazo)-3-hydroxy-1-naphthalenesulfonic acid 3-hydroxy-4-[(2-hydroxynaphthyl)azo]naphthalene-1-sulphonic acid 4-[(2-Hydroxy-1-naphtyl)azo]-3-hydroxy-1-naphthalenesulfonic acid 3-Hydroxy-4-[(2-hydroxy-1-naphtyl)azo]-1-naphthalenesulfonic acid 1-[(2-Hydroxy-1-naphtyl)azo]-2-hydroxy-4-naphthalenesulfonic acid 1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-