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Flavonoids and chalconoid isolated from flowers of Cosmos bipinnatus Cav. (Asteraceae) flavonoid và chalconoid

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Leaves of the genus Cosmos have been studied in chemical constituents and biological activities in Vietnam. However, chemical constituents of Cosmos flowers have not been extensively investigated. The dried purple and white flower powders of Cosmos bipinnatus Cav. were exhautively macerated with ethanol solvent. |