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US09458142B2 Substituted quinones or analogues as colouring agents 有权
取代的醌或类似物作为着色剂

Substituted quinones or analogues as colouring agents
Abstract:
The invention relates to protein-adhesive dyes, to the preparation thereof and to preparations comprising same, and to a method for coloring keratin-containing fibers, in particular for coloring human hair.
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