.beta.-D-Galactopyranosiduronic acid, (3.beta.,16.alpha.)-16,28-dihydroxyolean-12-en-3-yl O-6-deoxy-.alpha.-L-mannopyranosyl-(1.fwdarw.2)-O-[O-.beta.-D-glucopyranosyl-(1.fwdarw.6)-.beta.-D-galactopyranosyl-(1.fwdarw.4)]- 53078-36-7 NSC409073 PRIMULIC ACID