Preparation
2-Aminobenzene-1,4-disulfonic acid diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and the other will be 2,4-Diaminobenzenesulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation , product diazo, and the single accidentally coupled nitrogen compounds.
