title: [Studies on chemical constituents of Dendrobium crystallinum].
abstract: OBJECTIVE
  To study the chemical constituents of Dendobium crystallinum.
  
  
  METHODS
  Compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were identified by physicochemical properties and spectral analyses.
  
  
  RESULTS
  Nine compounds were obtained and identified as: 4, 4'-dihydroxy-3, 5-dimethoxybi-benzyl (1), gigantol (2), naringenin (3) , p-hydroxybenzoic acid (4), n-tetracosyl trans-p-cou-marate (5), n-octacosy trans-p-coumarate (6), n-hexacosyl trans-ferulate (7), stigmasterol (8), daucosterol (9).
  
  
  CONCLUSIONS
  All these compounds were obtained from this plant for the first time, compounds 1 and 4 were isolated firstly from the genus.
authors.affiliation: Department of Pharmnacognosy, China Pharmaceutical University, Nanjing 210038, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Chao-feng
authors.initials: CF
authors.lastname: Zhang
authors.forename: Zheng-tao
authors.initials: ZT
authors.lastname: Wang
authors.forename: Mian
authors.initials: M
authors.lastname: Zhang
authors.forename: Li
authors.initials: L
authors.lastname: Shao
authors.forename: Luo-shan
authors.initials: LS
authors.lastname: Xu
mesh_terms: D001632:Bibenzyls; D002845:Chromatography; D031667:Dendrobium / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry; D006139:Guaiacol / Q000031:analogs & derivatives / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D010226:Parabens / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry; D013265:Stigmasterol / Q000737:chemistry
chemical_list: D001632:Bibenzyls; D004365:Drugs, Chinese Herbal; D044950:Flavanones; D010226:Parabens; D012855:Sitosterols; C478099:gigantol; D006139:Guaiacol; D013265:Stigmasterol; C005273:naringenin; C038193:4-hydroxybenzoic acid; C011015:lyoniside