PROBLEM TO BE SOLVED: To provide a new hydrophilic and neutral compound having ultraviolet A wave (UVA) absorbing properties and a method for producing the same, and to provide an ultraviolet absorber and a skin external preparation using the same.SOLUTION: There is provided an aminohydroxybenzophenone derivative represented by the general formula (I) and a salt thereof. (In which, R1 and R2 each independently represents a straight chain or branched alkyl group having 1 to 4 carbon atoms which is substituted by at least one hydroxyl group or the like x represents COOR3 or the like R3 represents a straight chain or branched alkyl group having 1 to 4 carbon atoms which is substituted by at least one hydroxyl group or the like and R6 and R7 each independently represents a straight chain or branched alkyl group having 1 to 4 carbon atoms or the like.)COPYRIGHT: (C)2015,JPO&INPIT【課題】紫外線A波(UVA)吸収作用を有する、親水性かつ中性の新規化合物およびその製造方法、ならびに、それを用いた紫外線吸収剤および皮膚外用剤の提供。【解決手段】一般式(I)で表されるアミノヒドロキシベンゾフェノン誘導体またはその塩。(式中、R1およびR2は、それぞれ独立して、少なくとも1つのヒドロキシル基で置換された炭素数1~4の直鎖もしくは分岐のアルキル基等を、Xは、COOR3等を表し、R3は、少なくとも1つのヒドロキシル基で置換された炭素数1~4の直鎖もしくは分岐のアルキル基等を、R6およびR7は、それぞれ独立して、炭素数1~4の直鎖もしくは分岐のアルキル基等を表す。)【選択図】なし
