dye|World dye variety

Name:C.I.Acid Brown 84,C.I.20255

Molecular Structure: Double azo,Metal Complexes

C.I.Acid Brown 84,C.I.20255,CAS 13011-69-3,685.62,C26H17N5Na2O9S3,Baygenal Brown L-R

Molecular Formula:C₂₆H₁₇N₅Na₂O₉S₃

Molecular Weight: 685.62

CAS Registry Number: 13011-69-3

Manufacturing Methods :   3-Amino-4-chlorobenzenesulfonic acid diazo, Coupled with resorcinol, and then in the copper sulfate and sodium hydroxide solution heating, make it into copper complex, and then and after diazo 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid coupling. In the copper chloride complexation processes by hydroxyl replaced.

Properties and Applications: red light brown. Soluble in water for yellow brown, in tiny solubility in ethanol. The strong sulfuric acid in red orange for brown, after dilute for tan to yellow brown. In water solution to join strong hydrochloric acid for yellow brown; Add thick sodium hydroxide solution for red orange brown. Mainly used for leather color.

List of Suppliers:

Baygenal Brown L-R( Bayer Group )