从泰山盐肤木Rhustaishanensis的根茎中分得3个化合物，经与标准品对照，理化鉴别和波谱分析推定，化合物Ⅰ为没食子酸（gallicacid），Ⅱ为1－（2′，3′-二羟基苯基）－2-正庚基-1-壬烯-3-酮，是一新化合物，命名为盐肤木酮（rhusone），Ⅲ为moronic acid。

Three compounds were isolated from the root of Rhus taishanensis S. B. Liang sp.nov.They were identi-fied by comparing with authentic samples,physical,and chemical properties,and spectrum analysis as gallic acid(I)，a new compound 1-(2',3'-dihydroxylphenyl)-2-n-heptyl-l-nonene-3-one(Ⅱ) named rhusone,and moronic acid(Ⅲ).