2-Naphthalenesulfonic acid, 6-(acetylamino)-3-[(2,4-dimethyl-6-sulfophenyl)azo]-4-hydroxy-, disodium salt

2-Amino-3,5-dimethylbenzenesulfonic acid diazo, and 6-Acetamido-4-hydroxynaphthalene-2-sulfonic acid coupling.

red light orange. Soluble in water for orange, and adequate soluble in alcohol for orange. The strong sulfuric acid in red for quality, to orange diluted. In water solution to join strong hydrochloric acid for orange; With strong sodium hydroxide solution into orange brown. Can be used for the wool dyeing and printing, good levelness.

Standard(red)	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	6	3			1-2		2-3