Direct Red 29
Name:C.I.Direct Red 29,C.I.22305
Molecular Structure: Double azo class
Molecular Formula:C29H19N5Na2O7S
Molecular Weight: 627.54
CAS Registry Number:6426-54-6
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first with 2-Hydroxybenzoic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications: Claret
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
AATCC | 5 | 4 | 2 | 1-2 |
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