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Molecular Formula:C19H15N4NaO6S
Molecular Weight: 450.40
CAS Registry Number:70865-20-2
Manufacturing Methods : 4-(4-Aminophenylamino)-3-nitrobenzenesulfonic acid diazo, and m-Cresol coupling.
Product Name:Acid Yellow 199 200%
Molecular Structure: Single azo class 
Molecular Formula:C19H15N4NaO6S
Molecular Weight: 450.40
CAS Registry Number:70865-20-2
Manufacturing Methods : 4-(4-Aminophenylamino)-3-nitrobenzenesulfonic acid diazo, and m-Cresol coupling.
Properties and Applications: bright orange. Orange powder, soluble in water. Used for the dyeing nylon, to other fiber with color, for wool dyeing serious.
Counter Product:Dorasyn Yellow A4R 150%,Tectilon Yellow 4R 200%,Nylosan Yellow E-4RL
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 6-7 | 4-5 | 5 | 4-5 | ||||
