发明授权
US4692166A Use of halogenated 4,5-methylenedioxyphenol in the dyeing of keratinous fibres 失效
卤代4,5-亚甲二氧基苯酚在角质纤维染色中的应用

Use of halogenated 4,5-methylenedioxyphenol in the dyeing of keratinous
fibres
摘要:
Use for dyeing keratinous fibres, and especially human hair, on a compound corresponding to the formula: ##STR1## in which X denotes a bromine or chlorine atom.
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