Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom

摘要

A compound of formula IwhereinA is a moiety which provides UV absorbing activity to the compound of formula I that comprises 1 divalent group or 2 monovalent groups, with at least one group having carbonyl (C=O) functionality, and each R is independently linear or branched C1-C8 alkyl. Sunscreen formulations which contain these compounds and methods using these compounds to prepare formulations are also provided.