title: [Studies on chemical constituents and volatile oil of Xiaochengqi decoction].
abstract: OBJECTIVE
  To study the chemical constituents and volatile oil of Xiaochengqi decoction.
  
  
  METHODS
  The constituents in decoction were separated by means of column chromatography and their structures were identified by spectral data and compared with literature data. As well as the volatile oil of Xiaochengqi Fang were analyzed and identified by GC-MS.
  
  
  RESULTS
  Eleven compounds were isolated and identified as chrysophanol (1), physcion (2), magnolol (3), beta-sitosterol (4), sitosterol trans-cinnamic acid (5), emodin (6), aloe emodin (7), rhein (8), gallic acid (9), chrysophanol-8-O-beta-D-glucopyranoside (10), aurantiamarin (11). The volatile oils extracted with steam distillation from Xiaochengqi were identified 67 components, and the main components are including.
  
  
  CONCLUSIONS
  All of the eleven compounds were isolated from Xiaochengqi decoction for the first time and the study on their activities in Chinese prescription is being carried out. D-limonene (42.61%), p-cymene (16.43%), and 8-terpinene (14.46%).
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Miao-Xuan
authors.initials: MX
authors.lastname: Fan
authors.forename: Hong-Jie
authors.initials: HJ
authors.lastname: Wang
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Li
authors.forename: Peng-Yue
authors.initials: PY
authors.lastname: Li
authors.forename: Bao-Lin
authors.initials: BL
authors.lastname: Bian
mesh_terms: D000880:Anthraquinones / Q000737:chemistry; D001713:Biphenyl Compounds / Q000737:chemistry; D002934:Cinnamates / Q000737:chemistry; D053138:Cyclohexenes / Q000737:chemistry; D000081007:Cymenes; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D004642:Emodin / Q000031:analogs & derivatives / Q000737:chemistry; D005707:Gallic Acid / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D017705:Lignans / Q000737:chemistry; D000077222:Limonene; D039821:Monoterpenes / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry
chemical_list: D000880:Anthraquinones; D001713:Biphenyl Compounds; D002934:Cinnamates; D053138:Cyclohexenes; D000081007:Cymenes; D004365:Drugs, Chinese Herbal; D017705:Lignans; D039821:Monoterpenes; D009822:Oils, Volatile; D012855:Sitosterols; D013729:Terpenes; C499893:xiao-cheng-qi-tang; C005498:magnolol; C029010:cinnamic acid; C007210:4-cymene; C025473:gamma-sitosterol; D005707:Gallic Acid; D000077222:Limonene; C518327:aloe emodin; C008905:physcione; D004642:Emodin; C027113:chrysophanic acid; C020491:rhein