102302 ⎘
Azo dyes containing onium groups containing cyclammonium groups attached to an azo group by a carbon atom of the ring system characterised by the coupling component having an amino directing group
Azo direct dyes and method for dyeing hair using these dyes
#2Cationic dyes
#3Cationic oligomeric azo dyes
#4Agents for coloring keratin fibers
#5Symmetrical diazo compounds comprising 2-imidazolium groups and a cationic linker, compositions comprising them, method of coloring, and device