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Direct Blue 9

Name:C.I.Direct Blue 9,C.I.24155

Molecular Structure: Double azo class

C.I.Direct Blue 9,C.I.24155,CAS 6428-98-4,860.73,C34H23N4Na3O13S3,Direct Blue BN,Violet BC,Brilliant Violet B

C.I.Direct Blue 9,C.I.24155,CAS 6428-98-4,860.73,C34H23N4Na3O13S3,Direct Blue BN,Violet BC,Brilliant Violet B

Molecular Formula:C34H23N4Na3O13S3

Molecular Weight: 860.73

CAS Registry Number:6428-98-4

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

Properties and Applications: blue. Soluble in water, soluble in alcohol. The strong sulfuric acid for blue, blue after diluted precipitation. The dye water solution is blue, to join the hydrochloric acid have precipitation of dark; Add sodium hydroxide solution for purplish red color.

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

List of Suppliers:

Atul Direct Blue BN ( Atul Limited )

Dyrite Violet BC 200%( Rite Industries Inc. )

Leadirect Brilliant Violet B Cone.200%( Leadertech Colors Inc. )

Orcomine Brilliant Violet B Conc( Organic Dyestuffs Corp )


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