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S Acid83-64-739 % similar 7-Amino-4-hydroxy-2-naphthalenesulfonic acid87-02-539 % similar Gamma acid90-51-739 % similar 4-Nitroaniline-2-sulfonic acid96-75-339 % similar 6-Amino-2-naphthalenesulfonic acid93-00-538 % similar 1-Amino-2-naphthol-4-sulfonic acid116-63-237 % similar 2-Amino-1,5-naphthalenedisulfonic acid117-62-437 % similar 5-Amino-2-methoxybenzenesulfonic acid6470-17-337 % similar 2,6-Naphthalenedisulfonic acid581-75-937 % similar 4-Hydroxybenzenesulfonic acid98-67-937 % similar 9,10-Dihydro-1,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid145-48-237 % similar 4-Acetamido-2-aminobenzenesulfonic acid88-64-237 % similar 5-Acetamido-2-aminobenzenesulfonic acid96-78-637 % similar 5-Amino-2-methylbenzenesulfonic acid118-88-737 % similar 1-Naphthol-3,6-disulfonic acid578-85-837 % similar 4,4′-Diamino-2,2′-stilbenedisulfonic acid81-11-837 % similar 5-Amino-2-chlorobenzenesulfonic acid88-43-737 % similar 4,4′-Diaminodiphenylamine-2-sulfonic acid119-70-036 % similar 2,7-Naphthalenedisulfonic acid92-41-136 % similar Sulfoisophthalic acid22326-31-436 % similar