3-Aminonaphthalene-1,5-disulfonic acid diazo, and?2,5-Dimethylbenzenamine coupling, and then make the light gasification.
Properties and Applications
yellow. Soluble in water for yellow. The strong sulfuric acid is a deep in the red, blue black after diluted precipitation. Used for cellulose fiber fabric dyeing and printing, paper color. Levelness is very good.