4-(4-Aminophenyl)benzenamine double nitriding, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?in acid conditions coupled; 2-Aminobenzenesulfonic acid diazo, in alkaline conditions to the above the products with coupling, and then in alkaline conditions and N-(3-hydroxyphenyl)-2-methyl-aniline?coupling.
Properties and Applications
black. Black powder, unfavorable discharge. Used for wool, silk dyeing and printing, also can be used for leather color.
