The invention relates to UV absorbers and cosmetic compositions containing a naphthalenemethylenemalonic diester represented by the following formula (1):
wherein NAP represents a naphthalene group which may optionally have a substituent, and R¹ and R² each independently represent a hydrocarbon group, an alkoxyalkyl group, or an alkoxyalkylenoxyalkyl group. The UV absorbers and the cosmetic compositions of the invention exhibit excellent ultraviolet ray absorbing action, and are stable to light.
本发明涉及含有下式(1)所代表的
萘亚
甲基丙二酸二酯的
紫外线吸收剂和化妆品组合物:
其中,NAP 代表
萘基,该
萘基可选择性地具有一个取代基;R¹ 和 R² 各自独立地代表烃基、烷氧基烷基或烷氧基烯氧基烷基。本发明的
紫外线吸收剂和化妆品组合物具有优异的紫外线吸收作用,并且对光稳定。