从我国内蒙古赤峰地区产黄芩(Scutellaria baicalensis Georgi)中分离得到4个单体化合物。经UV,IR,~1H-NMR,~(13)C-NMR,MS鉴定,晶Ⅰ和晶Ⅱ为千层纸素-A(oroxylinA)和汉黄芩素(wogonin),晶Ⅲ和晶Ⅳ为(2S)-5,7,2′,6′-四羟基双氢黄酮(tetrahydroxyflavanone)和(2R,3R)-3,5,7,2′,6′-五羟基双氢黄酮(pentahydroxyflavanone).其中晶Ⅲ和晶Ⅳ系国内首次从正品黄芩中分得。 Four monomeric compounds were isolated from Scutellaria baicalensis Georgi in Chifeng, Inner Mongolia. By UV, IR, ~1H-NMR, ~(13)C-NMR, MS identification, crystal I and crystal II are oroxylinA and wogonin, crystal III and crystal IV are (2S)-5,7,2′,6′-tetrahydroxyflavanone and (2R,3R)-3,5,7,2′,6′-pentahydroxyflavanone. Among them, crystal III and crystal IV were first obtained from genuine yellow peony.