The present invention relates to novel cationic yellow dyes of formula (1)
wherein R.sub.1 and R.sub.2 are each independently of the other a
C.sub.1-C.sub.8alkyl radical or an unsubstituted or substituted benzyl
radical, R.sub.3 is hydrogen, C.sub.1-C.sub.8alkyl,
C.sub.1-C.sub.8alkoxy, cyanide or halide, preferably hydrogen and X is an
anion, with the proviso that at least one of the substitutents R.sub.1 is
a benzyl radical and R.sub.2 is a methyl radical, R.sub.2 is not
hydrogen, also to compositions therof, especially comprising other dyes,
to processes for the preparation therof and to the use therof in the
dyeing of organic material, such as keratin, wool, leather, silk,
cellulose or polyamides, especially keratin-containging fibres, cotton or
nylon, and preferably human hair.