title: [Study on the chemical constituents of Rhizoma Cyperi].
abstract: OBJECTIVE
  To study the chemical constituents of Rhizoma Cyperi.
  
  
  METHODS
  The constituents were separated and purified by silica gel column chromatography, their structures were identified on the basis of physico-chemical properties and spectral data.
  
  
  RESULTS
  Six compounds were isolated and identified as physicion (1), hexadecanoic acid (2), beta-sitosterol (3), stigmasterol (4), catenarin (5), daucosterol (6).
  
  
  CONCLUSIONS
  Compounds 1, 4, 5 were isolated from this plant for the first fime.
authors.affiliation: Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Wu
authors.forename: Hou-Lin
authors.initials: HL
authors.lastname: Xia
authors.forename: Li-Hua
authors.initials: LH
authors.lastname: Huang
authors.forename: Dan-Dan
authors.initials: DD
authors.lastname: Chen
authors.forename: Jin-Yu
authors.initials: JY
authors.lastname: Chen
authors.forename: Hai-Ting
authors.initials: HT
authors.lastname: Weng
mesh_terms: D029786:Cyperus / Q000737:chemistry*; D004642:Emodin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D019308:Palmitic Acid / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012855:Sitosterols; D019308:Palmitic Acid; C025473:gamma-sitosterol; D013265:Stigmasterol; C008905:physcione; D004642:Emodin; C011015:lyoniside