The is provided a compound of formula I or II or physiologically acceptable salts or solvates, or oxidised derivatives thereof:
where R1 to R3, R13 and R14 are as defined herein. Also disclosed herein are methods of dyeing hair or (temporarily) tattooing the skin using the compounds of formula I or II (or physiologically acceptable salts or solvates, or oxidised derivatives thereof) in a suitable composition.
提供了式 I 或式 II 的化合物或生理上可接受的盐或溶液,或其氧化衍
生物:
其中 R1 至 R3、R13 和 R14 如本文所定义。本文还公开了在适当的组合物中使用式 I 或式 II 化合物(或生理上可接受的盐或溶解物,或其氧化衍
生物)染发或(暂时)纹身皮肤的方法。