3-Amino-4-methoxybenzenesulfonic acid diazo, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupled to get A single accidentally nitrogen compounds. 4-Amino-5-hydroxynaphthalene-2,7-disulfonic aciddiazo, and 2-Amino-4-methylanisole coupling, get single accidentally nitrogen compounds B, and then A, B and aniline and 2,4,6-Trichloro-1,3,5-triazine condensation chlorine.
Properties and Applications
yellow light red. Orange brown powder, soluble in water, the solution for the purple. The strong sulfuric acid dyes for purple solution, diluted into red, precipitation. The dye solution to join a red after hydrochloric acid; Sodium hydroxide solution to join strong after the same color. Dyeing of copper (a slight change in color, meet iron ion dark colored. Used for cotton, viscose fiber and its blended fabric dyeing and printing directly, can be used for paper colored, the heavy metal salt can be used as organic pigments. But with disperse dyestuff with bath dyeing polyester/stick blended fabric.
