Acid Brown 119
Name:C.I.Acid Brown 119,C.I.35025
Molecular Structure: Multi-azo class
Molecular Formula:C30H21N11Na2O10S2
Molecular Weight: 805.67
CAS Registry Number: 69428-27-9
Manufacturing Methods : 3-Aminobenzenesulfonic acid diazo, and Benzene-1,4-diamine coupling ; 4-Nitrobenzenamine diazo, Coupled with resorcinol; And then the double nitriding 2,4-Diaminobenzenesulfonic acid respectively with the above two single accidentally coupled nitrogen compounds.
Properties and Applications: brown. Dark brown powder. Soluble in water for yellow light brown. Strong sulfuric acid in a yellow light brown, a yellow brown after diluted precipitation. Its water solution to join strong hydrochloric acid have yellow brown precipitation; Add thick sodium hydroxide solution for blue-ray red.
List of Suppliers:
Acid Red Brown V (Sinochem Ningbo Imp & Exp Corp)
Corium Acid Brown M562( Industria Chimica Dott )
Eniavel Yellow Brown R( Enia Industries Quimicas S.A. )
Eniavel Yellow Brown S( Enia Industries Quimicas S.A. )
Lecotan Havana G( Jinwoong Industrial Co Ltd )