Disclosed herein are a composition for dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone derivative and a method using the composition. Further disclosed herein are amino-N,N-dihydropyrazolone derivatives and the addition salts thereof and diamino-N,N-dihydropyrazolone derivatives and the addition salts thereof, as well as the methods for preparing these compounds.
本文公开了一种用于染色角蛋白纤维的组合物,例如,人类角蛋白纤维,如头发,包括至少选择自二
氨基-N,N-
二氢吡唑酮衍
生物的氧化碱和使用该组合物的方法。此外,本文还公开了
氨基-N,N-
二氢吡唑酮衍
生物及其盐和二
氨基-N,N-
二氢吡唑酮衍
生物及其盐,以及制备这些化合物的方法。