title: [Studies on the chemical constituents of marine sponge Iotrochota sp].
abstract: OBJECTIVE
  To study the chemical constituents from the marine sponge Iotrochota sp.
  
  
  METHODS
  The compounds were isolated and purified by various column chromatography methods, and their structure wer identified cholesterol (1), nonadecyl ethers of glycerol (2), p-hydroxybenzaldehyde (3), (E)-4-(3,4-dihydroxyphenyl) but-3-en-2-one (4), 3,4-dihydroxybenzaldehyde (5), ethyl vanillin (6), hendecanoic acid (7), tricosane (8).
  
  
  CONCLUSIONS
  All compounds are isolated from marine sponge Iotrochota sp. for the first time.
authors.affiliation: Key Laboratory of marine Bio-resourses Sustainable utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510240, China. autumn.li@163.com
authors.forename: Yun-Qiu
authors.initials: YQ
authors.lastname: Li
authors.forename: Guang
authors.initials: G
authors.lastname: Dong
authors.forename: Jing
authors.initials: J
authors.lastname: Hu
authors.forename: Yong-Hong
authors.initials: YH
authors.lastname: Liu
mesh_terms: D000473:Alkanes / Q000737:chemistry / Q000302:isolation & purification*; D000818:Animals; D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D002396:Catechols / Q000737:chemistry / Q000302:isolation & purification; D002784:Cholesterol / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011161:Porifera / Q000737:chemistry*
chemical_list: D000473:Alkanes; D001547:Benzaldehydes; D002396:Catechols; C005581:protocatechualdehyde; D002784:Cholesterol; C011483:4-hydroxybenzaldehyde; C554095:n-tricosane; C045941:ethyl vanillin