P-phenylenediamine substituted by a quaternary ammonium...

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 211/63 (2006.01) C07C 215/72 (2006.01) C07C 217/84 (2006.01) C07C 255/58 (2006.01) A61K 7/13 (1990.01)

Patent

CA 2080412

p-phenylenediamines having a quaternary ammonium group and substituted with an electron withdrawing group, derivatives thereof, compositions containing same, and their use as developers for dyeing keratinous fibers, are disclosed.

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