The molecule is a triterpenoid saponin with an arborinane-type terpenoid as the aglycone. It has been isolated from the roots of Rubia yunnanensis. It has a role as a plant metabolite. It is a pentacyclic triterpenoid, an acetate ester, a diol, a triterpenoid saponin, a monosaccharide derivative and a beta-D-glucoside.
[(2R,3S,4S,5R,6R)-6-[[(1R,3S,3aR,5aS,5bS,6S,7aR,9R,10R,11aS,13aR,13bR)-10-acetyloxy-3a-(acetyloxymethyl)-1,6-dihydroxy-5a,8,8,11a,13a-pentamethyl-3-propan-2-yl-1,2,3,4,5,5b,6,7,7a,9,10,11,13,13b-tetradecahydrocyclopenta[a]chrysen-9-yl]oxy]-3,4,5-trihydroxyoxan-2-yl]methyl acetate