219944-46-4

â-D-Glucopyranosiduronic acid,(3â,4â,16R,21â,22R)-28-(acetyloxy)-16,- 22,23-trihydroxy-21-[[(2Z)-2-methyl-1-oxo- 2-butenyl]oxy]olean-12-en-3-yl O-â-D-glucopyranosyl-(1f2)-O-[â-Dglucopyranosyl-( 1f4)]-