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Separation and Identification of Chemical Compositions fromBidens bipinnata L.

Liu Hong-yan

Abstract

Objective To investigate the chemical compositions from Bidens bipinnata L.Methods Bidens bipinnata L.was extracted with ethanol,separated and purified by silica gel-polyamide column chromatography,then,the chemical structures of products were identified by spectral analysis.Results Five compounds were obtained: isoquercitrin(Ⅰ),isookanin-7-O-β-D-glucoside(Ⅱ),maritimetin(Ⅲ),quercetin-7-O-β-D-glucoside(Ⅳ),D-mannitol(Ⅴ).Conclusion CompoundⅣandⅤare first isolated from this plant.

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Key concepts: Chromatography, Chemistry, Polyamide, Silica gel, Column chromatography, Glucoside, Chemical structure, Quercetin