16830-15-2 Asiaticosid Asiaticoside Ba 2742 Emdecassol Madecassol NSC166062 Urs-12-en-28-oic acid, 2,3,23-trihydroxy-, O-6-deoxy-.alpha.-L-mannopyranosyl-(1.fwdarw.4)-O-.beta.-D-glucopyranosyl-(1.fwdarw.6)-.beta.-D-glucopyranosyl ester, (2.alpha.,3.beta.,4.alpha.)-