Substituted n-aryl pyrroles

C - Chemistry – Metallurgy – 07 – D

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167/302

C07D 207/325 (2006.01)

Patent

CA 2011455

ABSTRACT OF THE DISCLOSURE The coloring of human hair and other keratinaceous substrates can be carried out efficiently using compositions containing certain N-aryl pyrroles as dye couplers or developers.

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