title: [Chemical constituents from the seed of Chimonanthus praecox extracted by supercritical carbon dioxide].
abstract: OBJECTIVE
  To analyse the volatile oil from seed of Chimonanthus praecox.
  
  
  METHODS
  The volatile oil was extracted by Supercritical CO2 fluid and was analysed by GC-MS.
  
  
  RESULTS
  Through comparison with mass spectra database, 43 components were isolated and identified. The main components are Calycanathine (51.88%), Calycanthidine (11.43%), n-Pentatriacontene (11.49%), (E, E)-2,4-Decadienal (9.67%), 1,1-diethoxyethoxy-3, 7-dimethyl-2, 6-Octadiene ( 3.40%), 7, 10-Octadecadienoic acid, methyl ester (3.38% ), 2, 13-Octadecadien-1-ol (2.90%), (1S-cis)-1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1 (1-methylethyl)-Naphthalene (1. 90%), 3-Hexadecyne ( 1.82%), Hexadecanoic acid metyl ester( 1.78% ), Caryophyllene oxide (1.49%), n-Hexadecanoic acid (1.48%), Spathulenol (1.07%).
  
  
  CONCLUSIONS
  Compounds (1S-cis)-1, 2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-metyl-ethyl)-Naphthalene, Farnesol and Spathulenol are isolated from the Chimonanthus praecox for the first time.
authors.affiliation: College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China. liuzhxi@sina.com
authors.forename: Zhi-Xiong
authors.initials: ZX
authors.lastname: Liu
authors.forename: Zhu-Xiang
authors.initials: ZX
authors.lastname: Liu
mesh_terms: D000447:Aldehydes / Q000032:analysis / Q000737:chemistry; D000470:Alkaloids / Q000032:analysis / Q000737:chemistry; D031237:Calycanthaceae / Q000737:chemistry*; D002245:Carbon Dioxide; D002681:China; D025924:Chromatography, Supercritical Fluid / Q000379:methods; D005204:Farnesol / Q000032:analysis / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification*; D010713:Phosphatidylcholines / Q000032:analysis / Q000737:chemistry; D012639:Seeds / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis / Q000737:chemistry; D013729:Terpenes / Q000032:analysis* / Q000737:chemistry
chemical_list: D000447:Aldehydes; D000470:Alkaloids; D009822:Oils, Volatile; D010713:Phosphatidylcholines; D012717:Sesquiterpenes; D013729:Terpenes; D002245:Carbon Dioxide; C057349:2,4-decadienal; D005204:Farnesol; C013258:spathulenol