Direct Blue 308
Name:C.I.Direct Blue 308,C.I.34207
Molecular Structure: trisazo class
C.I.Direct Blue 308,C.I.34207,1069.94,C43H27N7Na4O13S4,Direct Sky Blue Light Fast
Molecular Formula:C43H27N7Na4O13S4
Molecular Weight: 1069.94
CAS Registry Number:
Manufacturing Methods : 2-Amino-5-methylbenzene-1,4-disulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and Naphthalen-1-amine coupling, its product to diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.
Properties and Applications: navy.
| Standard(cotton) | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 4 | 4 | 4 | 5 | ||
List of Suppliers:
Direct Sky Blue Light Fast( Joint Stock Company ‘Coioros’ )