Cobaltate(3-), bis[5-chloro-2-(hydroxy-κO)-3-[[2-(oxo-κO)-1-[(phenylamino)carbonyl]propyl]azo-κN1]benzenesulfonato(3-)]-, disodium hydrogen

3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazo, and 3-Oxo-N-phenylbutanamide coupling, and then turn it into 1:2 cobalt complex.

dark yellow orange. Soluble in water for yellow orange, and adequate soluble in ethanol for orange. The strong sulfuric acid in orange, diluted the same color. In water solution to join hydrochloric acid for yellow orange, red orange precipitation; Add sodium hydroxide into scarlet.

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