6-Benzothiazolecarboxylic acid, 2-[4-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]-7-sulfo-, disodium salt

Preparation

2-(4-Aminophenyl)-7-sulfobenzo[d]thiazole-6-carboxylic acid diazo, and 3-Oxo-N-phenylbutanamide coupling.

Properties and Applications

colourful green light yellow. Soluble in water and ethanol lemon yellow. The strong sulfuric acid for golden brown, after dilute for lemon yellow. The dye solution to join strong hydrochloric acid for lemon yellow; Add thick sodium hydroxide solution for golden brown. Used for cellulose fiber dyeing, paper and soap kind of color. Good levelness, fights for a slight sensitive.

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