dye|World dye variety

Name:C.I.Direct Red 21,C.I.23560

Molecular Structure: Double azo class

C.I.Direct Red 21,C.I.23560,CAS 6406-01-5,724.72,C34H26N6Na2O6S2,Organix Red BLX

Molecular Formula:C₃₄H₂₆N₆Na₂O₆S₂

Molecular Weight: 724.72

CAS Registry Number:6406-01-5

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, and 6-Aminonaphthalene-2-sulfonic acid (2 Moore) coupled.

Properties and Applications: yellow light red. Moderate soluble in water for palm light orange, trace soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid for blue, Red sauce for shallow diluted. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation.

List of Suppliers:

Organix Red BLX( Classic Dyestuffs Inc )