Summary

Study on Flavonoids in Ban (Hypericum  japonicum Thunb. ex Murr.)

Three  flavonoids (quercetin,  quercitrin and rutin) have been isolated from Hypericum japonicum Thunb. ex Murr. gathered in Hatay-Vietnam. Their structures were determined on the basis of spectroscopic data.

Key words: Hypericum japonicum, flavonoid, quercetin, quercitrin, rutin.

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