New to - aminopyridines, their preparation and use as components in oxidation hair dyes, as well as those containing hair dye

摘要

1. Bis-aminopyridines corresponding to the general formula see diagramm : EP0008079,P6,F1 in which R represents the groups -HN-CH2 -NH, -HN-CH2 -CH2 -NH-, and their salts with inorganic or organic acids.