The use of benzazoles as uv absorbers, new benzazoles and a...

Details The use of benzazoles as uv absorbers, new benzazoles and a... The use of benzazoles as uv absorbers, new benzazoles and a...

C - Chemistry, Metallurgy

07

D

C07D 487/04 (2006.01) A61K 8/46 (2006.01) A61K 8/49 (2006.01) A61Q 1/04 (2006.01) A61Q 17/04 (2006.01) C07D 235/18 (2006.01) C07D 235/20 (2006.01) C07D 263/57 (2006.01) C07D 403/14 (2006.01) C07D 405/14 (2006.01) C07D 409/14 (2006.01) A61K 7/42 (1995.01)

Patent

CA 2143040

Compounds which, per molecule, contain at least 2 benzazolyl groups are outstandingly suitable as UV absorbers for sunscreen compositions. The compounds may have the formula (I): (see formula I) wherein n is 2-6; m is 0 or 1; l is 0-4; z is a polyvalent organic radical; R1 is H, alkyl or the like; and R2, R3, R4 and R5 are each H, alkyl, SO3Y or the like; Y is H or a cation.

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