| abstract |
The present invention mainly comprises one or more phenolic compounds of formula (I) (wherein R 1 , R 2 , R 3 , R 4 and R 5 are independently of each other hydrogen, halogen, OH group, methyl Or a linear or branched alkyl having 2, 3, 4 or 5 C atoms, wherein 1 , 2 or 3 different groups of the groups R 1 , R 2 , R 3 , R 4 and R 5 are simultaneously OH groups R 6 and R 7 are independently of each other hydrogen, methyl or straight-chain or branched alkyl having 2, 3, 4 or 5 C atoms, n is an integer from 0 to 20 and R 8 is methyl or linear or branched alkyl having 2 or 3 C atoms, cycloalkyl or phenyl having 3, 4, 5, 6 or 7 C atoms) and one or more of formula (II) Wherein R 9 , R 10 , R 11 and R 12 are independently of each other hydrogen, methyl, OH group or group —OR 13 , and R 13 is methyl or 2, 3, 4 , 5, 6, 7, 8, 9 or 10 Cosmetic and / or pharmaceutical preparations comprising or consisting of said compounds, and the use of compounds of formula (II) for stabilizing compounds of formula (I), And a method for stabilizing a compound of formula (I). [Chemical 1] [Selection figure] None |