2-Naphthalenesulfonic acid, 6-[(2-hydroxy-5-methylphenyl)azo]-, monosodium salt

6-Aminonaphthalene-2-sulfonic acid diazo, and p-Cresol coupling.

red light yellow. For yellow is soluble in water, soluble in ethanol and acetone, slightly soluble in benzene. The strong sulfuric acid to red. Used for wool, silk, vinegar fiber dyeing and printing directly. The metal salt can be used as organic pigments.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	5-6	2-3		3			2-3