The molecule is a pentacyclic triterpenoid that is ursa-12,20(30)-diene substituted by a carboxy group at position 28 and hydroxy groups at positions 2, 3 and 23. It is a phytoalexin isolated from the peel of unripe kiwi fruit Actinidia deliciosa. It has a role as a metabolite and a phytoalexin. It is a pentacyclic triterpenoid and a hydroxy monocarboxylic acid. It derives from a hydride of an ursane.
(1R,4aS,6aR,6aS,6bR,8aR,9R,10R,11R,12aR,14bS)-10,11-dihydroxy-9-(hydroxymethyl)-1,6a,6b,9,12a-pentamethyl-2-methylidene-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylic acid