dye|World dye variety

Name:C.I.Direct Blue 35,C.I.24145

Molecular Structure: Double azo class

C.I.Direct Blue 35,C.I.24145,CAS 6473-33-2,860.73,C34H23N4Na3O13S3

Molecular Formula:C₃₄H₂₃N₄Na₃O₁₃S₃

Molecular Weight: 860.73

CAS Registry Number:6473-33-2

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, first with 4-Hydroxynaphthalene-1-sulfonic acid coupling, then with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications:  blue. Soluble in water for deep purple, soluble in ethanol. The strong sulfuric acid for Tracy in blue, and in purple for diluted. The dye solution to join strong hydrochloric acid for purple, have precipitation; Add thick sodium hydroxide solution into product red.

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