| 摘要 |
Sunscreen compositions are described which comprise a carrier having incorporated therein in an amount effective to provide protection against the harmful effects of ultraviolet radiation a compound of the formula: <IMAGE> wherein X is -O- or -NH-; R, R2, R3, R4, is H, CH3, -CN, -C2H5 and OH, -OCH3, -OC2H5; R' is selected from an alkyl, alkenyl, aryl or alkyl substituted aryl radical having 5-18 carbon atoms and the radical OR5 where R5 is an alkyl, alkenyl, aryl or alkyl substituted aryl radical having 6-18 carbon atoms.
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