PROBLEM TO BE SOLVED: To provide a new compound having high water solubility, excellent absorbency in an ultraviolet wavelength region without absorption in a visible region and excellent stability.SOLUTION: The ultraviolet light absorber is composed of a furylmethylene malonamide compound represented by the general formula (1) [wherein, R1, R2 and R3 represent each independently a hydrogen atom or a 1-4C straight chain or a 1-4C branched alkyl group R4 and R5 represent each {(CH2)m-O}n-R6 and R6 represents a hydrogen atom or a 1-4C straight chain or a 1-4C branched alkyl group m is an integer of 2-4: and n is an integer of 1-5] and/or a salt thereof.COPYRIGHT: (C)2008,JPO&INPIT【課題】水溶性が高く、紫外線波長領域において優れた吸収能を有し、且つ可視領域には吸収がなく、しかも安定性に優れた新規化合物の提供。【解決手段】下記一般式(1)で表されるフリルメチレンマロンアミド化合物及びその塩。(式中、R1、R2、R3は各々独立して、水素原子又は炭素数1~4の直鎖または分岐のアルキル基を表し、R4、R5は各々{(CH2)m-O}n-R6を表し、R6は水素原子または炭素数1~4の直鎖または分岐のアルキル基を表す。mは2~4、nは1~5の整数である。)【選択図】なし
