C.I. Acid red 9710169-02-539 % similar 1-Amino-2-naphthol-4-sulfonic acid116-63-238 % similar 4-Hydroxy-2,7-naphthalenedisulfonic acid disodium salt20349-39-738 % similar 8-Amino-1-naphthol-5,7-disulfonic acid monosodium salt52789-62-538 % similar Acid black 19461931-02-038 % similar Ponceau 4R2611-82-738 % similar Tiron (chemical)149-45-137 % similar 2-Naphthol-3,6-disulfonic acid disodium salt135-51-337 % similar Congo red573-58-036 % similar 1-Naphthol-4-sulfonic acid84-87-736 % similar Eriochrome black T1787-61-735 % similar 2-Naphthol-6,8-disulfonic acid dipotassium salt842-18-235 % similar Acid orange 20523-44-435 % similar Orange G1936-15-834 % similar Sodium 2-hydroxy-4-methoxybenzophenone-5-sulfonate6628-37-134 % similar C.I. Pigment red 53:15160-02-134 % similar Sodium 2,3-dihydroxynaphthalene-6-sulfonate135-53-534 % similar Sodium 1,3,6-naphthalenetrisulfonate5182-30-934 % similar Acid orange 7633-96-534 % similar Acid red 735413-75-234 % similar