The molecule is a triterpenoid saponin that is composed of (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol having a beta-D-Glcp-(1->2)-{beta-D-Xylp-(1->2)-[beta-D-Glcp-(1->3)-beta-D-Glcp-(1->3)]-beta-D-Glcp-(1->4)}-alpha-L-Arap moiety attached to position 3 by a glycosidic linkage. It is isolated from the whole plants of Ardisia japonica and exhibits significant cytotoxicity against a panel of human cancer cell lines. It has a role as an antineoplastic agent and a plant metabolite. It is a hexasaccharide derivative, a bridged compound, a cyclic ether, a secondary alcohol, a hexacyclic triterpenoid and a triterpenoid saponin. It derives from a (3beta,16alpha)-13,28-epoxyoleanane-3,16-diol. It derives from a hydride of an oleanane.
(2S,3R,4S,5S,6R)-2-[(2S,3R,4S,5S)-5-[(2S,3R,4S,5R,6R)-4-[(2S,3R,4S,5R,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-2-[[(1S,2R,4S,5R,8R,10S,13R,14R,17S,18R)-2-hydroxy-4,5,9,9,13,20,20-heptamethyl-24-oxahexacyclo[15.5.2.01,18.04,17.05,14.08,13]tetracosan-10-yl]oxy]oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol