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Armstrong's acid81-04-938 % similar Formaldehyde-β-naphthalenesulfonic acid polymer sodium salt36290-04-738 % similar Naphthalene-1-sulfonic acid85-47-238 % similar 2-Aminophenol-4,6-disulfonic acid120-98-937 % similar 7-Amino-1,3,5-naphthalenetrisulfonic acid27310-25-437 % similar 4,6-Diamino-1,3-benzenedisulfonic acid137-50-837 % similar 2,2′-Benzidinedisulfonic acid117-61-336 % similar 7-Acetamido-4-hydroxy-2-naphthalenesulfonic acid6334-97-036 % similar Monopotassium 7-aminonaphthalene-1,3-disulfonate842-15-936 % similar Tobias acid81-16-336 % similar 2-Naphthol-3,6-disulfonic acid disodium salt135-51-336 % similar 2-Aminobenzene-1,4-sulfonic acid monosodium salt24605-36-536 % similar 8-Amino-4-hydroxynaphthalene-2-sulphonic acid489-78-136 % similar Aminomalononitrile p-toluenesulphonate5098-14-636 % similar 5,6-Diaminonaphthalene-1,3-disulfonic acid73692-57-636 % similar Azomethine H32266-60-736 % similar 2,4,5-Trichlorobenzenesulfonic acid6378-25-235 % similar 2,5-Dimethylbenzenesulfonic acid609-54-135 % similar 2,5-Diaminobenzenesulfonic acid88-45-935 % similar 2,4-Dimethylbenzenesulfonic acid88-61-935 % similar