Patent ID: 8066782

Claim:
A compound of formula (I) or (II): the salts thereof with an organic or mineral acid, geometrical isomers thereof, tautomers thereof, and solvates thereof including hydrates; in which formula (I) or (II): R 1 , which may be identical or different, represent: a chlorine atom; a (C 1 -C 3 ) alkyl radical optionally substituted with one or more hydroxyl groups; a (C 1 -C 3 ) alkoxy radical optionally substituted with one or more hydroxyl groups; R 2 represents a (C 1 -C 3 ) alkyl radical; X, which may be identical or different, represent: a hydroxyl radical; a radical —NR 3 R 4 with R 3 and R 4 representing, independently of each other: i) a hydrogen atom; ii) a C 1 -C 5 alkyl radical optionally substituted with one or more groups chosen from hydroxyl, (C 1 -C 3 )alkoxy, amino, (C 1 -C 3 )alkylamino, di(C 1 -C 3 ) alkylamino, amino-carbonyl, carboxylic —COOH, sulfonic —SO 3 H, tri(C 1 -C 3 ) alkylammonium and (C 1 -C 3 )alkyl-imidazolium; a pyrrolidinyl radical optionally substituted with a group chosen from hydroxyl, (C 1 -C 3 )alkoxy, amino, (C 1 -C 3 )alkylamino, di (C 1 -C 3 )alkylamino, tri(C 1 -C 3 )alkylammonium and (C 1 -C 3 ) alkylimidazolium; a piperidine radical optionally substituted with a group chosen from hydroxyl, (C 1 -C 3 )alkoxy, amino, (C 1 -C 3 )alkylamino, di(C 1 -C 3 )alkylamino, tri(C 1 -C 3 )alkylammonium and (C 1 -C 3 )alkylimid-azolium and; n represents an integer between 0 and 3 inclusive; with the proviso that when X and/or R 3 and/or R 4 comprise a cationic group, the electrical neutrality of the compound of formula (I) or (II) is achieved with an anionic counterion or a mixture of anionic counterions that are cosmetically acceptable, including chlorides, bromides and sulfates.