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Acid Red 158

Name:C.I.Acid Red 158,C.I.20530

Molecular Structure: Double azo class

C.I.Acid Red 158,C.I.20530,CAS 8004-55-5,Fast Red FR,Fast Red ER

C.I.Acid Red 158,C.I.20530,CAS 8004-55-5,Fast Red FR,Fast Red ER

Molecular Formula:

Molecular Weight:

CAS Registry Number:8004-55-5

Manufacturing Methods : aniline and p-Methylaniline diazo, and 5-Hydroxy-4-(2-hydroxynaphthalene-7-sulfonamido)naphthalene-1,7-disulfonic acid coupling.

Properties and Applications: red. Red powder, soluble in water, slightly soluble in ethanol for orange. The strong sulfuric acid dyes are cherry red, dilute to orange. The water solution is orange. Add after strong hydrochloric acid color unchanged; Add thick sodium hydroxide solution to orange brown. Used for wool, silk and their blended fabric dyeing and printing.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 4 3-4 3-4 2-3 4

List of Suppliers:

Ricoamide Fast Red FR ( Classic Dyestuffs Inc )

Telon Fast Red ER( Classic Dyestuffs Inc )


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