5-((4, 5-Dihydro-3-methyl-1-(2-methyl-4-sulphophenyl)-5-oxo-1H-pyrazol-4-yl)azo)-1H-1, 2, 4-triazole-3-carboxylic acid, sodium salt

5-((4, 5-Dihydro-3-methyl-5-oxo-1-(4-((2-(sulphooxy)ethyl)sulphonyl)phenyl)-1H-pyrazol-4-yl)azo)-2, 4-dimethoxybenzenesulphonic acid, sodium salt

5-((4, 5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-6-hydroxynaphthalene-1-sulphonic acid

5-((4, 6-Dichloro-1, 3, 5-triazin-2-yl)amino)-4-hydroxy-3-((1-sulpho-2-naphthyl)azo)naphthalene-2, 7-disulphonic acid

5-((4, 6-Dichloro-1, 3, 5-triazin-2-yl)amino)-4-hydroxy-3-((p-tolyl)azo)naphthalene-2, 7-disulphonic acid

5-((4, 6-Dichloro-1, 3, 5-triazin-2-yl)amino)fluorescein

5-((4, 6-Dichlorotriazin-2-yl)amino)fluorescein hydrochloride

5-((4, 8-Disulpho-2-naphthyl)azo)salicylic acid

5-((4-((((4-((4-Chloro-3-sulphophenyl)azo)-2-ethoxy-5-methylphenyl)amino)carbonyl)amino)phenyl)azo)salicylic acid

5-((4-(((4-((2, 4-Dihydroxy-5-((2-hydroxy-5-((3-sulphophenyl)azo)phenyl)azo)phenyl)azo)phenyl)amino)carbonyl)phenyl)azo)salicylic acid

5-((4-(((4-((7-Amino-1-hydroxy-3-sulpho-2-naphthyl)azo)phenyl)amino)carbonyl)phenyl)azo)salicylic acid

5-((4-((2, 6-Dichloro-4-nitrophenyl)azo)-2, 5-dimethoxyphenyl)azo)-N, N-diethyl-4-phenyl-2-thiazol-2-amine

5-((4-((2-(Benzoyloxy)ethyl)ethylamino)phenyl)azo)-1, 4-dimethyl-4H-1, 2, 4-triazolium methyl sulfate

5-((4-((2-Bromo-1-oxoallyl)amino)benzoyl)amino)-3-((5-((2-bromo-1-oxoallyl)amino)-2-sulphophenyl)azo)-4-hydroxynaphthalene-2, 7-disulphonic acid

5-((4-((2-Chlorophenyl)(4-((3, 5-dicarboxyphenyl)amino)phenyl)methylene)cyclohexa-2, 5-dien-1-ylidene)amino)isophthalic acid monohydrochloride

5-((4-((3-Aminobenzoyl)amino)-5-methoxy-2-methylphenyl)azo)-3-sulphosalicylic acid

5-((4-((3-Sulphophenyl)azo)-1-naphthyl)azo)-8-(p-tolylamino)naphthalene-1-sulphonic acid, ammonium sodium salt

5-((4-((4, 6-Dichloro-1, 3, 5-triazin-2-yl)methylamino)phenyl)azo)-2-(2-(4-nitro-2-sulphophenyl)vinyl)benzenesulphonic acid

5-((4-((4-((2, 4-Diamino-5-methyl-3-((4-((4-sulfophenyl)diazenyl)phenyl)diazenyl)phenyl)diazenyl)phenyl)thio)phenyl)diazenyl)-2-hydroxybenzoic acid

5-((4-((4-((3-Carboxy-4-chlorophenyl)amino)phenyl)phenylmethylene)-2, 5-cyclohexadien-1-ylidene)amino)-2-chlorobenzoic acid