abstract |
PCT No. PCT/FR97/00750 Sec. 371 Date May 7, 1999 Sec. 102(e) Date May 7, 1999 PCT Filed Apr. 25, 1997 PCT Pub. No. WO97/42173 PCT Pub. Date Nov. 13, 1997The invention discloses new 5-substituted 3,4-diamino pyrazols, their methods of preparation, compositions for keratin fiber oxidation dyeing containing them as an oxidizing base, and the dyeing methods using same. |