dye|World dye variety

Name:C.I.Acid Yellow 40:1,C.I.13920

Molecular Structure: Single azo class

C.I.Acid Yellow 40:1,C.I.13920,584.99,C23H18ClN4NaO7S2,Weak Acid Light Yellow 5G,Weak Acid Light Yellow 5GN,Acid Leather Yellow 2GC

Molecular Formula:C₂₃H₁₈ClN₄NaO₇S₂

Molecular Weight: 584.99

CAS Registry Number:

Manufacturing Methods : 4-Aminophenol diazo, and 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid coupling, and then and 4-Methylbenzene-1-sulfonyl chloride reaction, make phenol hydroxyl esterification.

Properties and Applications: yellow. Pale yellow powder. Soluble in water, but soluble in ethylene glycol ether, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid dyes in yellow; In nitric acid in yellow. Its water solution yellow, add hydrochloric acid sodium hydroxide solution or no change. Mainly used for wool, silk and polyamide fiber dyeing, also used in medicine, cosmetics and leather dyeing.

List of Suppliers:

Weak Acid Light Yellow 5G,Weak Acid Light Yellow 5GN

Acid Leather Yellow 2GC( Yorkshire Group pic )