Chemical studies on the oriental plant drugs—XXIV

Ginsenoside-Rg1, one of the neutral saponins of Ginseng root, has been purified via its crystalline deca-acetate (IV). The structure of this saponin has been established as 6,20-di-O-β-glucosyl-20S-protopanaxatriol (1). Panaxoside A, isolated by Elyakov et al. from the same plant is identical with ginsenoside-Rg1 and the structure of panaxoside A proposed by Elyakov et al. is discussed.