Hair dye and method of use

Details Hair dye and method of use Hair dye and method of use

C - Chemistry, Metallurgy

07

C

167/302, 260/566

C07C 223/06 (2006.01) C07C 251/24 (2006.01) A61K 7/13 (1995.01)

Patent

CA 1339863

The invention encompasses the use of nitroaminobenzaldehydes and nitroaminobenzylimines as hair dyeing agents. 4-[(2-hydroxyethyl)amino]-3- nitrobenzaldehyde, N-(2-hydroxyethyl)-4-[(2- hydroxyethyl)amino]-3-nitrobenzylimine and N-ethyl-(4- ethylamino-3-nitro)benzylimine are preferred embodiments. Compositions employing the hair dyeing agents of the present invention are also encompassed. f r,~

575126

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