3-Amino-5-chloro-4-hydroxybenzenesulfonic acid diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, and 3-Aminobenzenesulfonic acid condensation, and transformed into 1:1 copper complex.
