title: [Chemical constituents of Iris dichotoma].
abstract: OBJECTIVE
  To study the chemical constituents in the rhizoma of Iris dichotoma.
  
  
  METHODS
  The chemical constituents were isolated by various column chromatographic methods. The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analysis.
  
  
  RESULTS
  Eleven compounds, hispidulin (1), rhamnocitrin (2), iristectorigenin A (3), 4', 5, 7, 8-tetrahydroxy-6-methoxy isoflavone (4), 6-hydroxybiochanin A (5), iristectorin B (6), iristectorigenin A (7), kaempferol-7-methyl ether (8), tamarixetin-7-glucoside (9), iristectorin A (10), 3', 3, 5-trihydroxy-4', 7-dimethoxy-flavone-3-O-beta-D-galactopyranoside (11) were isolated and identified.
  
  
  CONCLUSIONS
  Compounds 1-11 were obtained from this plant for the first time.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medicinal Science, Beijing 100193, China.
authors.forename: Long
authors.initials: L
authors.lastname: Huang
authors.forename: Junshan
authors.initials: J
authors.lastname: Yang
authors.forename: Yong
authors.initials: Y
authors.lastname: Peng
authors.forename: Peigen
authors.initials: P
authors.lastname: Xiao
mesh_terms: D007498:Iris / Q000737:chemistry*; D010936:Plant Extracts / Q000032:analysis* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts