102273 ⎘
Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group;
Sub-classes:Disulfide dyes
#2DYES WITH POLYESTER SIDE CHAIN FOR POLYMER-COLORATION, THEIR PREPARATION AND THEIR USE
#3Method of preparing complex-AZO pigment and complex-AZO pigment thereof
#4Mono- and bis-hydrazone pigments
#5Mono- and bis-hydrazone pigments
#6Mono- and bis-hydrazone pigments
#7Mono- and bis-hydrazone pigments