Reactive Blue 256
Name:C.I.Reactive Blue 256,C.I.25075
Molecular Structure: Double azo class
Molecular Formula:C38H22Cl2N15Na5O17S5
Molecular Weight: 1306.86
CAS Registry Number:
Manufacturing Methods : 5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid(2 Moore) coupling, and then and 2,4,6-Trichloro-1,3,5-triazine (2 Moore) condensation and four.
Properties and Applications: Navy blue
Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
Fading | Stain | Fading | Stain | Fading | Stain | ||
ISO | 3-4 | 2 | 4 | 4-5 | 4-5 | 4-5(40℃) | 5(40℃) |
List of Suppliers:
Reactive Blue MEB( Colorom SA )
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