Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein R1 and R2 independently from each other are hydrogen C1-C20alkenyl C3-C10cycloalkyl or R1 and R2 together with the linking nitrogen atom form a 5- 6-membered heterocyclic ring R3, R4 and R5 independently from each other are C1-C4alkyl C1-C4alkoxy or a radical of formula (1a) R6 is C1-C6alkyl and A is a straight-chain or branched C3-C6alkylene, which is optionally interrupted by one or more *&mdashO&mdash*, or *&mdashO&mdash(CO)&mdash* groups and m is 0 or a number from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.
