6369-32-0

Acid Anthracene Brown PG is an organic monoazo dye used as a stain for elastin in human, dog, and rodent arteries.

2-Aminobenzoic acid is diazotized in alkaline conditions with 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid coupling.

dark brown. Soluble in water for orange to red light brown, right amount soluble in ethanol and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid for deep orange to red, for Light brown after diluted to orange precipitation; In concentrated nitric acid for Light brown, and then become yellow. Dye aqueous solution and concentrated hydrochloric acid for brown; Crowding sodium hydroxide solution for orange brown

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	5	5-6	5	4	5	5	5
AATCC	Dry 3,wet 5	6	4-5		5	4	5