D:A-Friedo-24-noroleana-1,3,5(10),7-tetraen-29-oicacid, 2,3-dihydroxy-, methyl ester, (20a)-

D:A-Friedo-24-noroleana-1,3,5(10),7-tetraen-29-oicacid, 2,3-dihydroxy-, methyl ester, (20a)- · CAS 31654-72-5