Fig. 1

HPLC analysis of YPF. (A) HPLC chromatograms of YPF. (B) Standard compounds. (5) Prim-O-glucosylcimifugin, (6) calycosin-7-O-β-D-glucoside, (7) cimifugin, (8) 4’-O-β-D-glucopyranosyl-5-O-methylvisamminol, (10) psoralen, (11) calycosin, (12) sec-O-glucosylhamaudol, (13) formononetin, and (15) atractylon. (C) Chemical structures of the compounds.