1-Naphthol-3-sulfonicacid, 5-amino- (4CI); 1-Amino-5-hydroxy-7-sulfonaphthalene;5-Amino-1-hydroxy-3-naphthalenesulfonic acid;8-Amino-4-hydroxy-2-naphthalenesulfonic acid; M acid; M acid (sulfonic acid);NSC 2602
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