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Molecular Formula:C30H37N3Na2O8S2
Molecular Weight: 677.74
CAS Registry Number:15792-43-5
Manufacturing Methods : 4-Dodecylbenzenamine diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.
Product Name:Acid Red 138 100%
Molecular Structure: Single azo class 
Molecular Formula:C30H37N3Na2O8S2
Molecular Weight: 677.74
CAS Registry Number:15792-43-5
Manufacturing Methods : 4-Dodecylbenzenamine diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications: blue-ray red. Mainly used in tussah silk and dyeing, wool fabric and polyamide fiber can be used. The salt can be used in organic pigments.
Counter Product:Burconyl Red C2B,Ricoamide Red C2B
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3-4 | 4 | 4-5 | 5 | 4-5 | 4 | 5 | 5 |
