hydrogen [4-[[4-(diethylamino)phenyl][4-[ethyl[(3-sulphonatobenzyl)amino]-o-tolyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt

4-(Diethylamino)benzaldehyde?(1 Moore) and 3-((Ethyl(m-tolyl)amino)methyl)benzenesulfonic acid?(2 Moore) condensation, garnish with heavy chromate salt-oxalic acid oxidation.

Not classified

bright blue. Blue powder, soluble in water, but soluble in ethanol for pure blue. The strong sulfuric acid dyes for yellow until golden brown, to dilute lemon yellow. The water solution is violet blue, encounter after sodium hydroxide are still violet blue, precipitation. Levelness and discharge performance is good. Dyeing copper and iron ion in the dark colored. Used for wool, silk and their blended fabric dyeing and printing directly, also used in leather and wood color, sometimes also used for leather shoes oil up graces role.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	1	4		4	2-3		4
AATCC	1	3-4		4	3-4		4-5