Direct Blue 214
Name:C.I.Direct Blue 214,C.I.23158
Molecular Structure: Double azo class
C.I.Direct Blue 214,C.I.23158,CAS 68140-31-8,864.68,C32H19N4Na3O15S3
Molecular Formula:C32H19N4Na3O15S3
Molecular Weight: 864.68
CAS Registry Number:68140-31-8
Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitride, met with 4,5-Dihydroxynaphthalene-2,7-disulfonic acid and 4,6-Dihydroxynaphthalene-2-sulfonic acid coupling, then the product was converted to copper complex (in the complexation process, two methoxy group is replacing a hydroxyl group)
Properties and Applications: blue.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4-5 | 5 | 6 | 4 | 3 | 4-5 | 3 |
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