(1,1 '- biphenyl) - 2,4 diamine derivatives containing dyes for keratinfasern and new (1,1' - biphenyl) - 2,4 diamine derivatives

摘要

Keratin fiber coloring agents containing (1,1'-biphenyl)-2,4-diamine derivatives of general formula (I) or a physiologically tolerated salt thereof and novel (1,1'-biphenyl)-2,4-diamine derivatives.