Chemical Constituents of Volatile Oil from Blumea balsamifera (Linn.) DC. in Yunnan

Volatile oil from Blumea balsamifera(Linn.) DC.in Yunnan was obtained by steam distillation.Fifty-six compounds were separated and identified by GC-MS.There are 44 compounds with relative content 0.11%-0.50%,6 compounds with 0.51%-1.00%,6 compounds with relative content higher than 1.01%.The main compounds are camphor(17.76%) and borneol(52.42%).Others are isoborneol,terpineol,carboxaldehyde,caryophllene,eugenol,guaiol,cubenol, mentholete,etc.