2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[[4-(4,6-dimethyl-2-benzothiazolyl)-2-methylphenyl]azo]-4-hydroxy-, disodium salt

2-(3-Methyl-4-aminophenyl)-4,6-dimethylbenzothiazole diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid?coupling.

blue purple. Soluble in water for red light purple, slightly soluble in ethanol is shallow purple. The strong sulfuric acid in the navy for, for the red light purple diluted. The dye solution to join strong hydrochloric acid wine red precipitate; Add thick sodium hydroxide solution have article red precipitate.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
AATCC	3	4-5	2	1		1-2