Preparation
2,4,6-Trichloro-1,3,5-triazine respectively with chlorine 2,4-Diaminobenzenesulfonic acid and ethyl 2-(3-(Ethylamino)phenylsulfonyl)ethyl hydrogen sulfate condensation, diazotization, in alkaline medium and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, 2-(4-Aminophenylsulfonyl)ethyl hydrogen sulfate diazo, coupled with single accidentally nitrogen compounds.
