dye|World dye variety

Name:C.I.Direct Red 22,C.I.23565

Molecular Structure: Double azo class

C.I.Direct Red 22,C.I.23565,CAS 6448-80-2,724.72,C34H26N6Na2O6S2,Direct Puiple R,Deltapurpurme 5B

Molecular Formula:C₃₄H₂₆N₆Na₂O₆S₂

Molecular Weight: 724.72

CAS Registry Number:6448-80-2

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, respectively with the 6-Aminonaphthalene-2-sulfonic acid and 7-Aminonaphthalene-2-sulfonic acid coupling.

Properties and Applications: blue-ray red. Moderate soluble in water for palm light orange,slightly soluble in ethanol as a pale orange red, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted for brown. The dye solution into the join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for palm light orange, precipitation..

List of Suppliers:

Atul Direct Puiple R( Atul Limited )

Deltapurpurme 5B[( Golden Dyes Corpn (India) Pvt Ltd )