title: Dinoflagellate sterols IV: Isolation and structure of 4 alpha, 23xi, 24xi-trimethylcholestanol from the dinoflagellate Glenodinium hallii.
abstract: The dinoflagellate Glenodinium hallii was investigated for its sterol composition. Five of the six sterols were isolated and identified as cholest-5en-3beta-ol, (24xi)-24-methylcholest-5-en-3beta-ol, stigmasta-5,22-dien-3beta-ol, (22E,24R)-4 alpha, 23, 24-trimethyl-5 alpha-cholest-22-en-3 beta-ol, and 4 alpha, 23 xi, 24 xi-trimethyl-5 alpha-cholestan-3 beta-ol.
mesh_terms: D000818:Animals; D002777:Cholestanols / Q000302:isolation & purification*; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D004141:Dinoflagellida / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D013261:Sterols / Q000302:isolation & purification
chemical_list: D002777:Cholestanols; D013261:Sterols; C033070:dinostanol