dye|World dye variety

Name:C.I.Direct Blue 4,C.I.24380

Molecular Structure: Double azo class

C.I.Direct Blue 4,C.I.24380,CAS 4247-14-7,788.72,C34H26N6Na2O10S2,Simrect Blue 22973

Molecular Formula:C₃₄H₂₆N₆Na₂O₁₀S₂

Molecular Weight: 788.72

CAS Registry Number:4247-14-7

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

Properties and Applications:  blue. Soluble in water for blue, insoluble in organic solvents. The strong sulfuric acid for blue-ray green, diluted red for blue; In nitric acid solution for the red light in blue. The dye solution to join 10% sodium hydroxide solution for bright blue.

List of Suppliers:

Simrect Blue 22973( Simpsons (UK) Ltd )