title: [Studies on chemical constituents of roots of Linum usitatissimum].
abstract: OBJECTIVE
  To study the chemical constituents from the roots of Linum usitatissimum.
  
  
  METHODS
  The compounds were isolated and purified by silica gel column chromatography, their structures were elucidated by physico-chemical properties and spectroscopic data.
  
  
  RESULTS
  Ten compounds were isolated and identified as vanillic acid (1), syringic acid (2), xanthine (3), vitexin (4), isovanillin (5), (E)-3,3'-dimethoxy-4,4'-dihydroxystilbene (6), tachioside (7), beta-sitosterol and stigmasterol (8 and 9) mixture, berberine (10).
  
  
  CONCLUSIONS
  Compounds 1-3, 5-7, 10 were isolated from L. usitatissimum for the first time.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources of Chinese Herbal Medicine (Ministry of Education), Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
authors.forename: Jianlong
authors.initials: J
authors.lastname: Sun
authors.forename: Anjun
authors.initials: A
authors.lastname: Deng
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Li
authors.forename: Hailin
authors.initials: H
authors.lastname: Qin
mesh_terms: D019597:Flax / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals