dye|World dye variety

Name:C.I.Acid Yellow 40,C.I.18950

Molecular Structure: Single azo class

C.I.Acid Yellow 40,C.I.18950,CAS 6372-96-9,584.99,C23H18ClN4NaO7S2,Acid Yellow MR,Acid Yellow 5G,Yellow 5GS,Yellow SG

Molecular Formula:C₂₃H₁₈ClN₄NaO₇S₂

Molecular Weight: 584.99

CAS Registry Number:6372-96-9

Manufacturing Methods :  4-Aminophenol diazo, and 5-Chloro-2-(3-methyl-5-oxo-2H-pyrazol-1(5H)-yl)benzenesulfonic 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 or no change. This product used for pure, thick wool clothing dyeing comb female?, also used for silk, polyamide fiber dyeing, wool knitting products of silk nets printing. Can also be used in leather color.

List of Suppliers:

Acid Yellow 5G Conc.( Global Colors Inc. )

Acid Yellow MR ( Global Colors Inc. )

Akacid Leather Yellow (Aakash Chemicals & Dyestuffs Inc)

Permaloti Yellow 5GS( Standard Dyes )

Ricoamide Yellow 5G (Classic Dyestuffs Inc)

Rybacid Yellow SG(SBU Pigments and Dyes)

Triacid Fast Yellow 5G(Chemische Fabriek Triade BV)