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Direct Brown 17

Name:C.I.Direct Brown 17,C.I.30100

Molecular Structure: trisazo class

C.I.Direct Brown 17,C.I.30100,CAS 6661-48-9,779.16,C31H25ClN10Na2O6S2,Oxamine Brown GX

C.I.Direct Brown 17,C.I.30100,CAS 6661-48-9,779.16,C31H25ClN10Na2O6S2,Oxamine Brown GX

Molecular Formula:C31H25ClN10Na2O6S2

Molecular Weight: 779.16

CAS Registry Number:6661-48-9

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first with 3,5-Diamino-4-chlorobenzenesulfboic acid coupling, and then and 4-Aminobenzenesulfonic acid diazo, in acid conditions and 4-Methylbenzene-1,3-diamine coupled to a product matches.

Properties and Applications: brown. Slightly soluble in water for orange brown, slightly soluble in alcohol.  In concentrated sulfuric acid for gray light blue, for yellow brown after diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution have orange brown precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 1 4 2 1 1

List of Suppliers:

Oxamine Brown GX( IG Farbenindustrie AG )


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