Lonergan, G Isolation, NMR studies, and biological activities of onopordopicrin from Centaurea sonchifolia. [electronic resource] - Journal of natural products Feb 1992 - 225-8 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0163-3864 Standard No.: 10.1021/np50080a012 doi Subjects--Topical Terms: Anti-Bacterial AgentsAnti-Infective Agents--analysisAntifungal Agents--analysisAntineoplastic Agents, Phytogenic--analysisAtlantic IslandsBacteria--drug effectsFungi--drug effectsHumansKB Cells--drug effectsLactones--analysisMagnetic Resonance SpectroscopyMicrobial Sensitivity TestsPlants, Medicinal--chemistrySesquiterpenes--analysis