Name:C.I.Direct Brown 1:2,C.I.30110
Molecular Structure: trisazo class
Molecular Weight: 694.63
CAS Registry Number:2586-58-5
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, and 2-Hydroxybenzoic acid coupling, 4-Aminobenzenesulfonic acid diazo, and 4-Methylbenzene-1,3-diamine coupling, its products and producing again 4-(4-Aminophenyl)benzenamine derivatives coupling.
Properties and Applications: brown. Soluble in water for yellow olive brown, slightly soluble in alcohol. The strong sulfuric acid is a deep in the navy, diluted light orange for subtle stitching. The dye solution to join strong hydrochloric acid have yellow brown precipitation; Add thick sodium hydroxide solution have brown light orange precipitation.
List of Suppliers:
Apollo Direct Brown 3G ( Taiheung Corp )
AtulDirect Brown CN ( Atul Limited )
Direct Brown CN ( Colour Industries )
Direct Brown CN( National Dyechem Industries )
Eniacel Brown 2GS( Enia Industries Quimicas S.A. )