Known as: 3-O-((O-rhamnopyranosyl-(1-6)-O-glucopyranosyl-(1-4)-O-glucopyranosyl-(1-4)-O-beta-D-ribopyranosyl-(1-3)-O-rhamnopyranosyl-(1-2)arabinopyranosyl)oxy)olean-12-en-21-hydroxy-28-oic acid-O-rhamnopyranosyl-(1-4)-O-glucopyranosyl-(1-6)glucopyranosyl ester