Benzofuran derivatives and the use thereof as stabilizers against UV radiations
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United States of America Patent
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Nov 8, 1994
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N/A
app pub date -
Aug 6, 1993
filing date -
Mar 5, 1993
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Expired
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Abstract
Compounds of the general formula I ##STR1## wherein R--R.sub.4 are as defined in the description, have stabilizing activity against UV radiation and are useful in cosmetics and dermatology.
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