Shoeb, Mohammad Americanin, a bioactive dibenzylbutyrolactone lignan, from the seeds of Centaurea americana. [electronic resource] - Phytochemistry Nov 2006 - 2370-5 p. digital Publication Type: Journal Article ISSN: 0031-9422 Standard No.: 10.1016/j.phytochem.2006.08.012 doi Subjects--Topical Terms: Centaurea--chemistryDioxins--chemistryMolecular StructureSeeds--chemistry