dye|World dye variety

Name:C.I.Acid Brown 122,C.I.33525

Molecular Structure: trisazo class

C.I.Acid Brown 122,C.I.33525,CAS 6487-05-4,798.58,C28H16N8Na2O14S2,Acid Dark Brown MR,Dark Brown R,Brown EDK

Molecular Formula:C₂₈H₁₆N₈Na₂O₁₄S₂

Molecular Weight: 798.58

CAS Registry Number: 6487-05-4

Manufacturing Methods :   6-Amino-4-hydroxynaphthalene-2-sulfonic acid  diazo, Coupled with resorcinol, 4-Nitrobenzenamine diazo, and the generation of single accidentally coupled nitrogen compounds, and then and diazo 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid coupling.

Properties and Applications: dark red light brown. Soluble in water for orange brown. The strong sulfuric acid for wine, dilute after brown precipitation. In water solution to join strong hydrochloric acid for orange brown; With rare sodium hydroxide solution for blue-ray red.

List of Suppliers:

Corium Acid Dark Brown MR( Industria Chimica Dott? )

Eniavel Dark Brown R( Enia Industries Quimicas S.A. )

Everlan Brown EDK(Eveiiight Chemical Industrial Corp)