Objective: To study the chemical constituents from the roots of Linum usitatissimum.
Method: The compounds were isolated and purified by silica gel column chromatography, their structures were elucidated by physico-chemical properties and spectroscopic data.
Result: Ten compounds were isolated and identified as vanillic acid (1), syringic acid (2), xanthine (3), vitexin (4), isovanillin (5), (E)-3,3'-dimethoxy-4,4'-dihydroxystilbene (6), tachioside (7), beta-sitosterol and stigmasterol (8 and 9) mixture, berberine (10).
Conclusion: Compounds 1-3, 5-7, 10 were isolated from L. usitatissimum for the first time.
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