Higher alkyl quaternary halide salts of cinnamate esters of the general formula I
wherein R¹ is an alkyl group containing from one to four carbon atoms; R² is an alkyl group containing from one to six carbon atoms; R³ is alkylene containing from two to six carbon atoms; R⁴ is an alkyl group containing from sixteen to twenty-two carbon atoms; and X⁻ is a halogen anion
are useful as sunscreen agents. Sunscreen compositions containing same and methods of using are provided.
通式 I 的
肉桂酸酯的高级烷基季卤化物盐,其中 R¹ 是含有 1 至 4 个
碳原子的烷基;R² 是含有 1 至 6 个
碳原子的烷基;R³ 是含有 2 至 6 个
碳原子的亚烷基;R⁴ 是含有 16 至 22 个
碳原子的烷基;X- 是卤素阴离子,可用作
防晒剂。 提供了含有这些成分的防晒组合物和使用方法。