Acid Yellow 228
Name:C.I.Acid Yellow 228,C.I.24896
Molecular Structure: Double azo,Stilbene Class
Molecular Formula:C40H30N4Na2O12S4
Molecular Weight: 932.93
CAS Registry Number:82323-97-5
Manufacturing Methods : 1,2-Bis(4-amino-2-sulfophenyl)ethene double nitriding, and phenol (2 Moore) coupled, then 4-Methylbenzene-1-sulfonyl chloride with phenol hydroxyl groups esterified.
Properties and Applications: dark red light yellow. Mainly used for wool, polyamide fiber dyeing, also can be used for silk dyeing. Good solubility.
Standard(Polyamide) | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 6-7 | 5 |
List of Suppliers:
Eniacid Milling Fast Yellow 2R( Enia Industries Quimicas S.A. )