20-Gluco-ginsenoside-Rf (compound 4) is a bisdesmosidic saponin that can be obtained from the roots of Panax ginseng.
References:
[1]. Cho JG, et al. Re-evaluation of physicochemical and NMR data of triol ginsenosides Re, Rf, Rg2, and 20-gluco-Rf from Panax ginseng roots. J Ginseng Res. 2014 Apr;38(2):116-22.
















