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Direct Red 15

Name:C.I.Direct Red 15,C.I.23510

Molecular Structure: Double azo class

C.I.Direct Red 15,C.I.23510,CAS 5413-69-4,826.76,C34H25N6Na3O9S3,Brilliant Purpurine R

C.I.Direct Red 15,C.I.23510,CAS 5413-69-4,826.76,C34H25N6Na3O9S3,Brilliant Purpurine R

Molecular Formula:C34H25N6Na3O9S3

Molecular Weight: 826.76

CAS Registry Number:5413-69-4

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, First coupling with 3-Aminonaphthalene-2,7-disulfonic acid, again with 4-Aminonaphthalene-1-sulfonic acid matches. There are some type of dyes, part 4-Hydroxynaphthalene-1-sulfonic acid can be 6-Aminonaphthalene-2-sulfonic acid instead.

Properties and Applications:  red. Soluble in water is palm red light, and adequate soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for blue, Purple gray for diluted. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for palm light orange, precipitation.

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

List of Suppliers:

Brilliant Purpurine R( Aktiengesellschaft für Anilin-Fabrikation )


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