3-Aminobenzenesulfonic acid diazo, and Naphthalen-1-amine coupling, product to diazo, coupled with phenol, then will the phenol hydroxyl into b oxygen radicals.
Properties and Applications
red light orange. Red orange powder, soluble in water, in 90 ℃ water solubility of 100 g/L. This applies to goods polyamide fiber fabric dyeing, can make discharge printing to color but to pull white, the color fastness is better.
