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Solvent Red 69

Name:C.I.Solvent Red 69,C.I.27290

Molecular Structure: Double azo class

C.I.Solvent Red 69,C.I.27290,CAS 5413-75-2,556.48,C22H14N4Na2O7S2,Lampronol Scarlet R, Fast Scarlet C

C.I.Solvent Red 69,C.I.27290,CAS 5413-75-2,556.48,C22H14N4Na2O7S2,Lampronol Scarlet R, Fast Scarlet C

Molecular Formula:C22H14N4Na2O7S2

Molecular Weight: 556.48

CAS Registry Number:5413-75-2

Manufacturing Methods : 4-(Phenyldiazenyl)benzenamine diazotization, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications:yellow red. Soluble in water for red, soluble in ethanol and Cellosole, hardly soluble in acetone, insoluble in other organic solvent. In concentrated sulfuric acid to red light purple, red brown after dilution precipitation; In concentrated nitric acid for blue, then into olive brown, finally to orange. Dye water solvent to join concentrated hydrochloric acid has dark red light brown precipitation; Join concentrated sodium hydroxide solution for dark brown, precipitation. Used to varnish, plastic, wood color.

Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO Poor-General 175-200

List of Suppliers:

Lampronol Scarlet R ( Francolor Pigments SA )

Luxol Fast Scarlet C( Pylam Products Co. Inc. )

Sepisol Fast Scarlet C( BIMA 83 )


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