94825-60-2 Benzoic acid, 2-hydroxy-3-methyl-, reaction products with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, 6-amino-4-hydroxy-2-naphthalenesulfonic acid and 2,2'-(1,2-ethenediyl)bis(5-aminobenzenesulfonic acid)