Name:C.I.Acid Yellow 79
Molecular Structure: Double azo class
C.I.Acid Yellow 79,CAS 12220-70-1,1111.12,C47H40N10Na2O12S4,Acid Yellow 4G,Acid Yellow 4GL Acid Yellow 4G,Acid Yellow 4GL
Molecular Formula:C47H40N10Na2O12S4
Molecular Weight: 1111.12
CAS Registry Number:12220-70-1
Manufacturing Methods : 1,1- dimethyl 4,4 ‘-dihydroxydiphenyl methane and 4-Aminophenol (2 Moore) reaction, its product diazo, and 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone (2 Moore) coupled.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater |
| Fading | Stain | Fading | Stain | Fading | Stain |
| ISO | 6 | 4 | 3-4 | 4-5 | 3-4 |
| 4-5 | 4-5 |