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Home › Compounds derived from diaminopyrazoles substituted by an aminoalkyl or aminoalkenyl radical and their use in oxidation dyeing of keratinous fibres

Compounds derived from diaminopyrazoles substituted by an aminoalkyl or aminoalkenyl radical and their use in oxidation dyeing of keratinous fibres

US Patent 7014663 · Granted Mar 21, 2006

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