Synonyms:
aminophenolsulphonicacid ; 4-hydroxymetanilic acid ; 2-hydroxy-5-sulfoaniline ; 2-aminophenol-4-sulfonic ; 2-aminophenol-1-sulfonicacid ; 2-amino-4-sulfophenol ; metanilic acid, 4-hydroxy- ; 2-amino phenol-4-acid ; 2-hydroxymetanilic acid ; oapsa