N-Methyl J acid22346-43-6100 % similar 1-Naphthol-3,6-disulfonic acid578-85-868 % similar Phenyl J acid119-40-468 % similar 4,4'-Dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid)134-47-468 % similar 7-Amino-4-hydroxy-2-naphthalenesulfonic acid87-02-560 % similar 7-Acetamido-4-hydroxy-2-naphthalenesulfonic acid6334-97-055 % similar Phenyl γ-acid119-19-754 % similar 4-Hydroxy-6-[(3-sulfophenyl)amino]-2-naphthalenesulfonic acid25251-42-753 % similar Chromotropic acid148-25-450 % similar Gamma acid90-51-750 % similar 8-Amino-4-hydroxynaphthalene-2-sulphonic acid489-78-147 % similar 2-Amino-5-hydroxynaphthalene-1,7-disulphonic acid6535-70-246 % similar 2-Naphthalenesulfonic acid, 7,7′-(carbonyldiimino)bis[4-hydroxy-, sodium salt (1:2)20324-87-245 % similar 8-Hydroxy-1,6-naphthalenedisulfonic acid117-43-145 % similar H Acid90-20-043 % similar 4-Hydroxy-2,7-naphthalenedisulfonic acid disodium salt20349-39-743 % similar 6-Amino-1,3-naphthalenedisulfonic acid118-33-242 % similar Metol55-55-041 % similar 2-Naphthol-6-sulfonic acid93-01-641 % similar 2,6-Naphthalenedisulfonic acid581-75-940 % similar