| abstract |
Disclosed is a 2 -phenyl-benzimidazolesulfonic acid according to the formula n n n in which n n is 0, 1 or 2 and n m is 2 or 3, n R1, R2, R3, R4 and R5, are each a radical such as H, C 1-8 -alkyl, C 1-8 -alkoxy, hydroxyl, sulfate, nitro, F, Cl, Br or I radicals, and n R6 is a C 1-8 -alkyl or C 1-8 -alkoxy radical. n This compound can be effectively used as a UV filter, and as part of a cosmetic formulation which comprise these compounds. A process for preparation of the compound is disclosed as well. |