3-beta,5-Dihydroxy-14,15-beta-epoxy-19-oxo-5-beta-bufa-20,22-dienolide 4-19-00-03021 (Beilstein Handbook Reference) 5-beta-BUFA-20,22-DIENOLIDE, 3-beta,5-DIHYDROXY-14,15-beta-EPOXY-19-OXO- 562-21-0