Acid Yellow 158
Name:C.I.Acid Yellow 158
Molecular Structure: Single azo class
Molecular Formula:C25H16Cl2N9Na3O11S3
Molecular Weight: 854.52
CAS Registry Number:12220-84-7
Manufacturing Methods : 2,4-Diaminobenzenesulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, and again 3-Aminobenzenesulfonic acid condensation, and then diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid coupling, and finally hydrolysis.
Properties and Applications: green light yellow. Yellow evenly powder, soluble in water, solubility than 50 g/L (50 ℃). Can be used for wool and polyamide fiber fabric dyeing.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 6 | 4 | 5 | 4-5 | 4 | 5 | 4-5 | 5 |
List of Suppliers:
Cibacron Yellow 2G( Clayton Aniline Co. Ltd )
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