C.I. Acid Orange 100

2-Amino-6-chloro-4-nitrophenol diazo, and Pentane-2,4-dione coupling, and then turn it into 1:2 cobalt complex.

bright yellow orange. Soluble in water for red light yellow, and adequate soluble in alcohol for red light yellow. The strong sulfuric acid to dark yellow, diluted the same color. Add sodium hydroxide in aqueous solution for yellow, then to orange precipitation; Join the hydrochloric acid for yellow, then to orange precipitation.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	4	3	4	5	3	4