3-[Ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]-1,2-propanediol

4-Nitrobenzenamine diazo, and 1-(Ethyl(phenyl)amino)propane-1,3-diol?coupling

Yellow?red.soluble in ethanol, acetone and benzene. The strong sulfuric acid for yellow brown, diluted to scarlet red in nitric acid solution for thick red; In strong hydrochloric acid solution for red; In the thick of sodium hydroxide solution for the red light brown. Used for cellulose acetate, three vinegar fiber dyeing and discharge printing.

Standard(Vinegar fiber)	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
	Fading	Stain		Fading	Stain	Fading	Stain
AATCC			5			1-2	1
ISO			4-5	4	1	4	4-5