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.
提供一种化合物,其
化学式为I或II或其生理上可接受的盐或溶剂合物,或其氧化衍
生物:其中R1至R3、R13和R14的定义如本文所述。本文还揭示了使用
化学式I或II的化合物(或其生理上可接受的盐或溶剂合物,或其氧化衍
生物)在适当的组合物中染发或(临时)在皮肤上进行纹身的方法。