10.22376/ijpbs.2019.10.1.p1-12 Volume 2 Issue 4 2011 (October - December) The bioactive constituents present in stem parts of Bulbophyllum kaitense. Rechib belongs to the family Orchidaceae. Six compounds in ethanolic extract. were identified by gas chromato graphy (GC-MS).This analysis revealed that Bulbophyllum kaitense Rechib stems contain mainly n-Hexadecanoic acid (57.93%) a-bisabolol (6.99%) 2,4,5- Trihydroxypyrimidine (2.62%) .It is the first report of identification of bio active constituents from stem parts of Bulbophyllum kaitense Rechib by GC-MS A.Kalaiarasan And S.Ahmed John Bulbophyllum kaitense rechib. Bioactive, GC-MS Analysis n-Hexadecanoic acid. 156-160