Direct Yellow 31
Name:C.I.Direct Yellow 31,C.I.29095
Molecular Structure: Double azo class
C.I.Direct Yellow 31,C.I.29095,CAS 71775-48-9,738.66,C29H24N8Na2O9S2,Solar Flavine GA
Molecular Formula:C29H24N8Na2O9S2
Molecular Weight: 738.66
CAS Registry Number:71775-48-9
Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and N-(3-aminophenyl)acetamide coupling, and then make the light gasification.
Properties and Applications: yellow. Used for cellulose fiber dyeing and printing, silk and wool fabric printing, paper, shading, discharge the gender is good.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 3-4 | 5-6 | 3-4 | 2 | ||
List of Suppliers:
Solar Flavine GA( Sandoz Ltd )