2-Hydroxy-6-naphthalenesulfonicacid; 2-Naphthol-6-sulfonic acid; 6-Hydroxy-2-naphthalenesulfonic acid; NSC5871; Schaeffer's acid; Schaeffer's b-acid; Schaeffer's b-naphtholsulfonic acid; Schaffer's acid; b-Naphthol-6-sulfonic acid; b-Naphtholsulfonic acid S
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