The invention relates to a preparation having light-protection properties comprising at least one compound of the formula I ##STR00001## where R.sup.1 and R.sup.2 are selected from H and OR.sup.11, where each OR.sup.11, independently of the others, is OH, a straight-chain or branched C.sub.1- to C.sub.20-alkoxy group, a straight-chain or branched C.sub.3- to C.sub.20-alkenyloxy group, a straight-chain or branched C.sub.1- to C.sub.20-hydroxyalkoxy group, where the hydroxyl group(s) may be bonded to a primary or secondary carbon atom in the chain and furthermore the alkyl chain may also be interrupted by oxygen, and/or a C.sub.3- to C.sub.10-cycloalkoxy group and/or C.sub.3- to C.sub.12-cyclo-alkenyloxy group, where the rings may each also be bridged by --(CH.sub.2).sub.n-- groups, where n=1 to 3, and/or a mono- and/or oligoglycosyl radical, with the proviso that at least one radical from R.sup.1 and R.sup.2 is OR.sup.11, and R.sup.3 is a radical OR.sup.11, and R.sup.4 to R.sup.7 and R.sup.10 may be identical or different and are, independently of one another, radicals which are substantially inert with respect to the UV properties.

 
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