Name:C.I.Acid Yellow 44,C.I.23900
Molecular Structure: Double azo class
C.I.Acid Yellow 44,C.I.23900,CAS 2429-76-7,764.78,C34H34N6Na2O8S2,Acid Yellow 6G
Molecular Formula:C34H34N6Na2O8S2
Molecular Weight: 764.78
CAS Registry Number:2429-76-7
Manufacturing Methods : 5-Amino-2-(4-amino-5-methyl-2-sulfophenyl)-4-methylbenzenesulfonic acid double nitriding, and 3-Oxo-N-phenylbutanamide (2 Moore) coupled.
Mainly used for silk, polyamide fiber and wool dyeing and printing directly, also can used for leather dyeing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater |
| Fading | Stain | Fading | Stain | Fading | Stain |
| ISO | 4 | 5 | 4-5 | 5 | 5 | 5 | 4-5 | 4-5 |
| AATCC | 5 | 3-4 | 3-4 | 4 | 4 | 4 | 4-5 | 4-5 |