申请人:MERCK PATENT GESELLSCHAFT
公开号:US20020055532A1
公开(公告)日:2002-05-09
Disclosed is a
2
-phenyl-benzimidazolesulfonic acid according to the formula
1
in which
n is 0, 1 or 2 and
m is 2 or 3,
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
R6 is a C
1-8
-alkyl or C
1-8
-alkoxy radical.
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.
本发明公开了一种a2-苯基-苯并咪唑磺酸,其化学式为1,其中n为0、1或2,m为2或3,R1、R2、R3、R4和R5均为基团,例如H、C1-8烷基、C1-8烷氧基、羟基、硫酸基、硝基、F、Cl、Br或I基团,R6为C1-8烷基或C1-8烷氧基基团。该化合物可有效用作紫外线过滤剂,并作为化妆品配方的一部分包含这些化合物。本发明还公开了一种制备该化合物的方法。