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Direct Red 56

Name:C.I.Direct Red 56,C.I.23600

Molecular Structure: Double azo class

C.I.Direct Red 56,C.I.23600,CAS 6406-05-9,928.81,C34H24N6Na4O12S4,Diamine Brilliant Scarlet S

C.I.Direct Red 56,C.I.23600,CAS 6406-05-9,928.81,C34H24N6Na4O12S4,Diamine Brilliant Scarlet S

Molecular Formula:C34H24N6Na4O12S4

Molecular Weight: 928.81

CAS Registry Number:6406-05-9

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, and 3-Aminonaphthalene-2,7-disulfonic acid (2 Moore) coupled.

Properties and Applications: colourful red blue light. Soluble in water for palm light orange to red, slightly soluble in alcohol. The strong sulfuric acid for blue, orange to red light after dilute for brown. Dye with strong hydrochloric acid solution for orange brown, have precipitation; Add thick sodium hydroxide solution for palm to red light orange, precipitation.

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

List of Suppliers:

Diamine Brilliant Scarlet S( Carbotex Consultants )


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