Acid Yellow 68
Name:C.I.Acid Yellow 68,C.I.23270
Molecular Structure: Double azo class
C.I.Acid Yellow 68,C.I.23270,CAS 6470-39-9,779.22,C36H28ClN6NaO7S2,Supranolgdb GG
Molecular Formula:C36H28ClN6NaO7S2
Molecular Weight: 779.22
CAS Registry Number:6470-39-9
Manufacturing Methods : 4-(4-Amino-2-methylphenyl)-3-methylbenzenamine double nitriding, respectively with phenol and 4-Chloro-3-(3-methyl-5-oxo4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling, then use Benzenesulfonyl chloride make phenol hydroxyl esterification.
Properties and Applications: yellow. Mainly used for wool, silk dyeing and printing, good levelness, discharge sex medium. In dyeing copper, chromium ion colored light sends dark.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 4-5 | 4-5 | 4-5 | 2 | 4-5 | ||
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