Composition for dyeing keratinous fibers containing 3 amino pyrazolo-[1,5-a] pyridines, dyeing method, novel 3-amino pyrazolo-[1,5-a] pyridines
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United States of America Patent
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May 4, 2004
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Dec 17, 2002
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Nov 19, 1999
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Abstract
##STR1##The invention concerns novel oxidative composition for dyeing keratinous fibres comprising at least a 3-amino-pyrazolo-[1,5-a]-pyridine of Formula (I), the dyeing method using said composition, novel 3-amino pyrazolo-[1,5-a]-pyridines, and the method for preparing them.
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