必应染料-您身边的染料专家

Direct Brown 146

Name:C.I.Direct Brown 146,C.I.25260

Molecular Structure: Double azo class

C.I.Direct Brown 146,C.I.25260,CAS 8003-80-3,582.57,C25H23N10NaO4S,Para Fast Brown GK

C.I.Direct Brown 146,C.I.25260,CAS 8003-80-3,582.57,C25H23N10NaO4S,Para Fast Brown GK

Molecular Formula:C25H23N10NaO4S

Molecular Weight: 582.57

CAS Registry Number:8003-80-3

Manufacturing Methods :  N,N’-bis(3-aminophenyl)urea double nitriding, first and 2,4-Diaminobenzenesulfonic acid coupling, again with Benzene-1,3-diamine coupling.

Properties and Applications: brown. For yellow brown soluble in water, soluble in ethanol olive yellow light brown. The strong sulfuric acid in red orange for brown, diluted yellow brown to orange for brown. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution with olives brown precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 2 5 1 3 3

List of Suppliers:

Para Fast Brown GK( Bayer Group )


Leave a Reply