4-Amino-N-(4-aminophenyl)benzamide double nitriding, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupled, aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?group of neighborhood, again with a coupling 2-Aminophenol coupling.
Properties and Applications
black. Used for cellulose fiber dyeing and printing of, also can be used for leather shading.