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Astragaloside IV. This compound (CAS 84687-43-4) is a lanolin alcohol-shaped tetracyclic triterpenoid saponin with broad pharmacological activities affecting collagen metabolism and modulating pathogenesis of inflammation and viral infections. The images of Astragalus mongholicus were provided by Dr. Heidi Heuberger (LfL, Bayerische Landesanstalt für Landwirtschaft, Freising, Germany).
