Diaminopyrazole compounds and the use thereof in the oxidation dyeing of keratinous fibres
申请人:——
公开号:US20040103487A1
公开(公告)日:2004-06-03
The invention relates to novel diaminopyrazole compounds having formula (I): wherein R
1
represents a linear or branched C
4
-C
5
alkyl or n-propyl group, or a linear or branched C
3
-C
5
mono or polyhydroxy alkyl group, and the addition salts thereof with a physiologically acceptable acid. The invention also relates to the compositions containing such a compound for the dyeing of keratinous fibers and the method for using said compositions.