Synonyms: b-D-Glucopyranosiduronic acid, (3b,4a,16b,21b,22a)-28-(acetyloxy)-16,22,23-trihydroxy-21-[[(2E)-2-methyl-1-oxo-2-butenyl]oxy]olean-12-en-3-yl(9CI); b-D-Glucopyranosiduronic acid, [3b,4a,16b,21b(E),22a]-28-(acetyloxy)-16,22,23-trihydroxy-21-[(2-methyl-1-oxo-2-butenyl)oxy]olean-12-en-3-yl;(+)-Gymnemic acid I; Gymnemic acid I