title: [A new isoflavone from Huoxue Yiqi Tang].
abstract: OBJECTIVE
  To study the chemical constituents in the active parts of Huoxue Yiqi Tang.
  
  
  METHODS
  The silica gel, Sephadex LH-20 were used to isolate the compounds, El, FAB-MS and 1D, 2D-NMR were used to identify the obtained compounds.
  
  
  RESULTS
  14 compounds were obtained from the prescription.
  
  
  CONCLUSIONS
  They were all first time obtained from the prescription. Among them, 7, 3'-dihydroxyl-5'-methoxyisoflavone is new.
authors.affiliation: Beijing University of Traditional Chinese Medicine, Beijing 100102, China.
authors.forename: Xue-Min
authors.initials: XM
authors.lastname: Ma
authors.forename: Li-Sheng
authors.initials: LS
authors.lastname: Wang
authors.forename: Ya-Jian
authors.initials: YJ
authors.lastname: Guo
authors.forename: Shu-Ren
authors.initials: SR
authors.lastname: Guo
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D004642:Emodin / Q000737:chemistry / Q000302:isolation & purification; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C516283:7,3'-dihydroxyl-5'-methoxyisoflavone; D000880:Anthraquinones; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D007529:Isoflavones; C065753:isoflavanone; D004642:Emodin; C027113:chrysophanic acid; C020491:rhein