Phung Tan Phat * and Le Hoang Ngoan

* Corresponding author (

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This paper introduces the extraction and purification of some polymethoxylated flavones from Ageratum conyzoides L., (Family-Asteraceae), growing in Can Tho city. Different extraction methods were used to study on the aerial part of the herb. From 1% HCl in water extracts, three polymethoxylated flavones have been isolated and identified. They were O‑methyl apigenin, sinensetin, and scutellareintetramethyl ether. Structures of isolated compounds were elucidated according to their 1H-NMR, 13C-NMR, HSQC, HMBC, MS spectra as well as referring to published article.
Keywords: polymethoxylated flavone, Ageratum conyzoides, O-methyl apigenin, sinensetin, scutellareintetramethyl ether

Article Details


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