2-Hydroxynaphthalene-7-sulfonicacid;2-Naphthol-7-sulfonic acid;2-Naphthol-7-sulphonic acid;7-Hydroxynaphthalene-2-sulfonic acid;Cassella's acid;F acid;Mono Acid F;Mono F Acid;Monosulfonic acid F;NSC 1704;b-Naphthol-7-sulfonic acid;
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