3-[[4-[[6-[(4-Amino-3-methylbenzoyl)amino]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]naphthalene-1,5-disulfonic acid disodium salt

Preparation

3-Aminonaphthalene-1,5-disulfonic acid diazo, and a coupling m-Toluidine , its product to diazo, and?7-(4-Amino-3-methylbenzamido)-4-hydroxynaphthalene-2-sulfonic acid??coupling.

Properties and Applications

Claret. Soluble in water and ethanol for blue-ray red. The strong sulfuric acid for green light blue, for orange brown after diluted. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add thick sodium hydroxide solution for Claret.

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