Acid Yellow 55
Name:C.I.Acid Yellow 55,C.I.19040
Molecular Structure: Single azo class
C.I.Acid Yellow 55,C.I.19040,CAS 6359-56-4,580.93,C21H15ClN4Na2O7S2,Fast Light Yellow X
Molecular Formula:C21H15ClN4Na2O7S2
Molecular Weight: 580.93
CAS Registry Number:6359-56-4
Manufacturing Methods : 2-Aminonaphthalene-1-sulfonic acid diazo, and 1-(2-Methyl-4-sulfo-6-chlorophenyl)-3-methyl-5-pyrazolone
coupling.
Properties and Applications: brilliant yellow. Used for wool, silk dyeing and in wool, silk fabric printing directly. Levelness and discharge good sex.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 3 | 3 | 4 | 1 | 4 | ||
List of Suppliers:
Fast Light Yellow X ( Hoechst A G )