title: [Betuletol (5,7-dihydroxy 4-6-dimethoxy flavonol) and 3-methyl betuletol, new natural compounds, extracted from Betula ermanii Cham].
mesh_terms: D002855:Chromatography, Thin Layer; D005419:Flavonoids / Q000302:isolation & purification*; D007259:Infrared Rays; D013058:Mass Spectrometry; D010936:Plant Extracts / Q000032:analysis; D013057:Spectrum Analysis; D014197:Trees / Q000032:analysis*; D014466:Ultraviolet Rays
chemical_list: D005419:Flavonoids; D010936:Plant Extracts
vernacular_title: Le béulétol (dihydroxy-5,7 diméthoxy-4',6 flavonol) et le méthyl-3 bétulétol, nouveaux composés naturels, extraits de Betula ermanii Cham.