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. Author manuscript; available in PMC: 2012 Mar 9.
Published in final edited form as: J Agric Food Chem. 2011 Feb 15;59(5):1548–1556. doi: 10.1021/jf1028174

Figure 1.

Figure 1

Chemical structures of seven standards. 1: calycosin-7-O-β-D-glucoside; 2: ononin; 3: calycosin; 4: astragaloside IV; 5: astragaloside II; 6: formononetin; 7: astragaloside I.