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Halogenated, sulphonated, nitrated or nitrosated derivatives of Phenols and Phenol alcohols (1) Derivatives containing only halogen substituents and their salts (2) Phenol sulphonic acids, Naphthol sulphonic acids (3) G acid (2-naphtol-6) 8 disulphonic acid (4) Salts of G acid (5) Beta naphtol sulphonic acids (6) Nevile-winther acid (1-naphthol 4 sulphonic acid) (7) Schaeffer acid (2-Naphthol-6-sulphonic acid) (8) R acid (2-Naphthol 3, 6 disulphonic acid) and its disodium salt and salt of R acid (9) Chromotropic acid (1, 8- dihydroxynaphthalene 3, 6-disulfonic acid) (10) Para nitrophenol (11) Musk xylol Deleted