for the following products
1-Amino-8-naphthol-3,6-disulfonic acid monosodium salt | 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt | 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt 1-hydrate | H-Acid | H-Acid sodium salt and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid monosodium salt
