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Direct Blue 19

Name:C.I.Direct Blue 19,C.I.22485

Molecular Structure: Double azo class

C.I.Direct Blue 19,C.I.22485,CAS 6426-68-2,713.65,C32H21N5Na2O8S2,Direct Blue 3R

C.I.Direct Blue 19,C.I.22485,CAS 6426-68-2,713.65,C32H21N5Na2O8S2,Direct Blue 3R

Molecular Formula:C32H21N5Na2O8S2

Molecular Weight: 713.65

CAS Registry Number:6426-68-2

Manufacturing Methods :  4-(4-Aminophenyl)benzenamine double nitriding, and Naphthalen-2-ol coupling, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications: Red light blue and red light navy blue.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 5 1 2 2

List of Suppliers:

Direct Blue 3R( Aziende Colon Nazionali Affini (ACNA) )


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