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Acid Red 157

Name:C.I.Acid Red 157,C.I.17990

Molecular Structure: Single azo class

C.I.Acid Red 157,C.I.17990,CAS 6417-35-2,710.69,C31H28N4Na2O9S2,Supranol Brilliant Red G

C.I.Acid Red 157,C.I.17990,CAS 6417-35-2,710.69,C31H28N4Na2O9S2,Supranol Brilliant Red G

Molecular Formula:C31H28N4Na2O9S2

Molecular Weight: 710.69

CAS Registry Number:6417-35-2

Manufacturing Methods : p-Amino-N-cyclohexylacetanilide diazo, and  4-Benzamido-5-hydroxynaphthalene-1,7-disulfonic acid coupling.

Properties and Applications: red. Soluble in water for red orange, and adequate soluble in ethanol for orange. The strong sulfuric acid for cherry red, diluted into orange. In water solution to join strong hydrochloric acid have orange precipitation, add sodium hydroxide solution for orange brown.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 3 3 2-3 3 3-4

List of Suppliers:

Supranol Brilliant Red G( Bayer Group )


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