title: [The studies on the chemical components of trutleback].
abstract: OBJECTIVE
  Studies on the substance with nourishment Yin for a reasonable and rational auality appraise for turtleback.
  
  
  METHODS
  To separate by chromatography and identifying with MS, 1H NMR, 13C NMR, IR.
  
  
  RESULTS
  Two compounds were separated and identified as hexadecanoyl cholesterol ester and cholesterol.
  
  
  CONCLUSIONS
  The two compounds are isolated from turtleback for the first time.
authors.affiliation: Changchun College of Traditional Chinese Medicine, Changchun 130021, Jilin, China.
authors.forename: Da-cheng
authors.initials: DC
authors.lastname: Jiang
authors.forename: Yong-sheng
authors.initials: YS
authors.lastname: Wang
authors.forename: Yan-mei
authors.initials: YM
authors.lastname: Xiu
mesh_terms: D000818:Animals; D002784:Cholesterol / Q000302:isolation & purification; D002788:Cholesterol Esters / Q000737:chemistry / Q000302:isolation & purification*; D008419:Materia Medica / Q000737:chemistry*; D014426:Turtles
chemical_list: D002788:Cholesterol Esters; D008419:Materia Medica; C477184:hexadecanoyl cholesterol ester; D002784:Cholesterol