Acid Yellow 199

Acid yellow 199 is an azo dye that can be decolorized through reduction reaction.

4-(4-Aminophenylamino)-3-nitrobenzenesulfonic acid diazo, and m-Cresol coupling.

Not classified

bright orange. Orange powder, soluble in water. Used for the dyeing nylon, to other fiber with color, for wool dyeing serious.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	6-7	4-5		5			4-5

[1] Yang Y Y, Du L N, Wang G, et al. The decolorisation capacity and mechanism of Shewanella oneidensis MR-1 for Methyl Orange and Acid Yellow 199 under microaerophilic conditions[J]. Water Science and Technology, 2011, 63(5): 956-963.