Definitions
1.NounA pentacyclic triterpenoid dicarboxylic acid with IUPAC name (2R,3R,4S,4aR,6aR,6bS,8aR,12S,12aS,14aR,14bR)-2,3,12-trihydroxy-4,6a,6b,11,11,14b-hexamethyl-1,2,3,4a,5,6,7,8,9,10,12,12a,14,14a-tetradecahydropicene-4,8a-dicarboxylic acid