摘 要 ：从广西瓜馥木(Fissistigma kwangsiense Tsiang et P.T.LI)茎皮的乙醇提取物中分到6个黄酮成分，其中瓜馥木甲素为一新黄酮，经各种波谱解析及化学转换方法，其结构鉴定为8-羟基-5，6，7-三甲氧基双氢黄酮(l)。
Abstract:The new Havonoid kwangsienin A(l), together with four known flavonoids, was iso-lated from the bark of Fissistigma kwangsiense and its chemical structure was eluciidated as 8-hydroxy-5, 6, 7-trimethoxy-flavanone.