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8003-80-3

8003-80-3 Structure

8003-80-3 Structure
IdentificationBack Directory
[Name]

Direct Brown 146
[CAS]

8003-80-3
[Synonyms]

Direct Brown 146
Direct Brown 147
C.I.Direct Brown 146:C.I.25260
C.I.Direct Brown 147:C.I.23360
Hazard InformationBack Directory
[Preparation]

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
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