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Direct Blue 45

Name:C.I.Direct Blue 45,C.I.24310

Molecular Structure: Double azo class

C.I.Direct Blue 45,C.I.24310,773.7,C34H25N5Na2O10S2,Azidine Wool Blue B

C.I.Direct Blue 45,C.I.24310,773.7,C34H25N5Na2O10S2,Azidine Wool Blue B

Molecular Formula:C34H25N5Na2O10S2

Molecular Weight: 773.7

CAS Registry Number:

Manufacturing Methods :  3,3′-Dimethoxylbenzidine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid, and then in three alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: dark blue. Soluble in water for hidden cyan, soluble in ethanol for purple. The strong sulfuric acid for green light blue, blue for red after diluted. The dye solution to join strong hydrochloric acid as dark blue; Add thick sodium hydroxide solution for purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 4 1 4 2-3
AATCC 4-5 4-5 2 2-3 2-3

List of Suppliers:

Azidine Wool Blue B( Jager Carl GmbH )


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