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Acid Orange 79

Name:C.I.Acid Orange 79,C.I.23255

Molecular Structure: Double azo class

C.I.Acid Orange 79,C.I.23255,CAS 6470-37-7,759.72,C34H27N5Na2O9S2,Supranol Fast Orange RR

C.I.Acid Orange 79,C.I.23255,CAS 6470-37-7,759.72,C34H27N5Na2O9S2,Supranol Fast Orange RR

Molecular Formula:C34H27N5Na2O9S2

Molecular Weight: 759.72

CAS Registry Number:6470-37-7

Manufacturing Methods : 4-(4-Amino-2-methylphenyl)-3-methylbenzenamine double nitriding, respectively with the 7-Hydroxynaphthalene-1,3-disulfonic acid and 3-Oxo-N-phenylbutanamide coupling.

Properties and Applications: red light orange. Soluble in water for orange, soluble in ethanol for gold orange, slightly soluble in benzene and acetone. The strong sulfuric acid in red orange for, to orange diluted. The dye solution to join strong hydrochloric acid for orange; Add thick sodium hydroxide solution for yellow light brown. Used for wool, silk and fiber dyeing and printing directly.

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

List of Suppliers:

Supranol Fast Orange RR( Bayer Group )


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