Name:C.I.Direct Orange 34,C.I.40215/40220

Molecular Structure: Stilbenes
 

C.I.Direct Orange 34,C.I.40215/40220,CAS 12222-37-6,Direct Orange 7GL,Direct Fast Orange TGL,Solophenyl Orange TGL

CAS Registry Number:12222-37-6

Manufacturing Methods : in reflux conditions, sodium hydroxide solution in (E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid sodium salt with 4-Aminobenzenesulfonic acid sodium diazo with aniline coupled with product heating (40215). In reflux conditions, sodium hydroxide solution in (E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid  sodium salt with  4-Aminobenzenesulfonic acid sodium diazotization and a product matches m-Toluidine, molecular than 1:1. The proportion of 75 under heating together (40220).
 
Can be used for cotton, silk, wool and their blended fabric dyeing and printing, also can be used for leather and paper shading.