| abstract |
(57) Abstract: A novel oxidative hair dye based on a combination of a color developer and a coupling component is provided. SOLUTION: The oxidative hair dye of the present invention, as a color developer, It contains 2,5-diaminobenzonitrile of the general formula (I) or a water-soluble salt thereof which is not a physiological problem. Embedded image (However, R 1 and R 2 are independently of each other hydrogen, C 1 To C 6 alkyl, C 2 to C 4 hydroxyalkyl, Alternatively, it is a C 3 or C 4 dihydroxyalkyl, but the R 1 and R 2 residues are not simultaneously hydrogen. ) |