6360-10-7

2-Amino-5-nitro-N-ethylbenzenesulfonanilide diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? ?in acid conditions coupled with the method will nitro reductive into groups,?then the azo group with acetylated amino group on the bit.

blue-ray red. Soluble in water for red, soluble in ethanol purplish red color. The strong sulfuric acid for pink, to orange diluted. In water solution to join strong hydrochloric acid for red; Add thick sodium hydroxide solution for purple.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	6	3	3	3-4	1	1	3-4	2
AATCC	6	2	2	2-3	2	2	4	4