sodium 2-[4-[[2,4-dihydroxy-3-(phenylazo)phenyl]azo]phenyl]-6-methylbenzothiazole-7-sulphonate

Preparation

2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, Coupled with resorcinol; aniline diazo, and the generation of single accidentally coupled nitrogen compounds.

Properties and Applications

orange. Soluble in water for yellow brown, slightly soluble in alcohol. The strong sulfuric acid for orange red to brown, after dilute for orange brown. The dye solution with strong hydrochloric acid have orange brown precipitation; Join a wine red, hydrogen oxide precipitation. Used for cellulose fiber dyeing, good levelness, white good sex.

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