Direct Blue 226
Name:C.I.Direct Blue 226,C.I.22800
Molecular Structure: Double azo class
Molecular Formula:C34H18N6Na6O18S4
Molecular Weight: 1064.74
CAS Registry Number:12768-86-4
Manufacturing Methods : 2-Amino-5-(4-amino-3-barboxyphenyl)benzoic acid double nitriding, and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid (2 Moore) coupling, and then and total to 70 ℃ hot copper sulfate to transform into copper complex.
Properties and Applications: bright blue.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 3 | 5 | 1-2 | 3 | 2 | 1-2 |
List of Suppliers:
Sirius Supra Blue 3G( Bayer Group )
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