Direct Black 198
Name:C.I.Direct Black 198,C.I.35446
Molecular Structure: Multi-azo class
Molecular Formula:C45H34N13Na3O11S3
Molecular Weight:1098.00
CAS Registry Number:
Manufacturing Methods : 5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid (2 Moore) coupled, its product to double nitriding, and 4-Methylbenzene-1,3-diamine and Benzene-1,3-diamine coupling.
Properties and Applications: black.
Standard(cotton) | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 4 | 5 | 4 | 5 |
List of Suppliers:
Sakoton Black S( Sivashdky Dye Plant )