2-Amino-4,6-dinitrophenol diazotization, and 2,4-Diaminobenzenesulfonic acid and where did N-(3-amino-4-sulfophenyl)glycine?mixture coupling.
Properties and Applications
red light brown. Red light brown powder. Soluble in water for orange brown, slightly soluble in alcohol. In concentrated sulfuric acid for magenta, dilution after orange until golden brown. Its aqueous solution to join hydrochloric acid for yellow brown; Join concentrated sodium hydroxide solution for orange brown. Used for wool and silk dyeing.
