SMILES: C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4([C@@H]([C@H]([C@H]([C@@]5(C)CO)O)O)O)C)C)[C@@H]2[C@H]1C)C)C(=O)O
Description: The molecule is a pentacyclic triterpenoid that is urs-12-ene substituted by hydroxy groups at positions 1, 2, 3 and 23 and a carboxy group at position 28 (the 1beta,2alpha,3alpha stereoisomer). Isolated from Weigela subsessilis, it exhibits anticomplement activity against complement induced hemolysis. It has a role as a metabolite. It is a pentacyclic triterpenoid, a monocarboxylic acid and a tetrol. It derives from a hydride of an ursane.