Compounds having ultraviolet absorption ability or salts thereof, and methods for producing the same, skin external preparations, cosmetics

摘要

Provided is a compound represented by formula (I) or a salt thereof (in formula (I): R1 and R2 each represent hydrogen, a C1-5 straight-chain or branched alkyl group, a C1-5 straight-chain or branched alkoxy group, or a C1-5 straight-chain or branched alkenyl group; R3 represents hydrogen, a C1-5 straight-chain or branched alkyl group, or a C1-5 straight-chain or branched alkenyl group; and X represents hydrogen, or a straight or branched sugar chain having 1-10 sugar molecules).